Geography Homework Help

LAB 06/ MODULE 15: KARST LANDSCAPES AND GROUNDWATER

Note: Please refer to the GETTING STARTEDmodule to learn how to maneuver through and answer the lab questions using Google Earth ().

KEY TERMS

Students should know and understand these terms:

Aquifer Dissolution Stalactites
Cave Groundwater Stalagmites
Cavern Karst landscape Subsidence
Carbonate rock Sinkhole Tower karst
Disappearing stream Speleothems Water table

 

LAB LEARNING OBJECTIVES

After successfully completing this module, you should be able to the following tasks:

·         Identify karst features on a topographic map and aerial photo

·         Identify land uses associated with karst topography

·         Identify components of the groundwater system

·         Explain how water enters, flows through, and exits the ground

·         Explain how caves and caverns are formed

·         Explain how the hydrologic cycle functions

·         Identify land uses associated with groundwater

 

 

INTRODUCTION

This module examines Karst landscapes and groundwater. Topics include caves, caverns, sinkholes, aquifers, infiltration and groundwater movement. While these topics may appear to be disparate, you will learn how they are inherently related. The modules start with four opening topics, or vignettes, which are found in the accompanying Google Earth file. These vignettes introduce basic concepts karst landscapes and groundwater. Some of the vignettes have animations, videos, or short articles that will provide another perspective or visual explanation for the topic at hand.  After reading the vignette and associated links, answer the following questions. Please note that some links might take a while to download based on your Internet speed.

Expandthe INTRODUCTION folder and then select Topic 1: Introduction.

Read Topic 1:Introduction.

Question 1: What human disturbance is evident in both surface and subterranean karst environments?

A.   Human dwellings

B.   Pollution

C.   Agricultural land use

D.   Dams for hydroelectric power

Read Topic 2: Karst Landscapes.

Question 2: How are caves and caverns, once underground, now visible on the surface in mature tropical karst environment?

A.   A decrease in water levels exposed the caves and caverns

B.   Terracing of mountains for agricultural production exposed them

C.   Tectonic uplift and weathering and erosion of mountains exposed them

D.   Removal of vegetation exposed the caves and caverns

Read Topic 3: Groundwater

Question 3: How does the “ground” (soil, rock, topography) influence groundwater movement? (Check all that apply).

A.   The ground can temporarily hold or store the water

B.   Groundwater generally conforms to the topography of landscape

C.   Soil type affects infiltration rates

D.   The ground does not influence groundwater movement

Read Topic 4: Human Interaction.

Question 4: According to the website, what are three methods used to mitigate subsidence? (Check all that apply).

A.   Repressuring of wells through aquifers

B.   Artificial recharge of aquifers from the land surface

C.   Reduction of pumping draft

D.   Repressuring of aquifers through wells

 

Collapse and uncheck INTRODUCTION.

For the rest of this module, you will identify and explain the geographic distribution, patterns, and processes associated with karst processes and groundwater. In doing so, you will recognize and appreciate the impact that these processes and features have on the surface.

 

GLOBAL PERSPECTIVE

Double-click GLOBAL PERSPECTIVE, and the select Global Karst Distribution.

Karst environments are found throughout the world, and are found in nearly all climates and locations on earth. Many metropolitan cities are found in these karst landscapes. Moreover, many of these cities also are situated above or near large aquifers that provide water (in the form of groundwater) to the city and surrounding areas.

For Questions 5 to 8, double‑click and check each question to arrive at the city located in a karst environment. To find the associated large aquifer system located beneath or adjacent to the city of interest, select Global Aquifer Distribution and click global map. Fill in the blanks below with the answer:

  City Associated Aquifer
Question 5

 

A.   Miami

B.   Tampa

C.   Cairo

D.   Paris

A.   Gulf Coastal Plains

B.   Eastern European

C.   Central Asian

D.   Western Desert

Question 6

 

A.   Moscow

B.   Paris

C.   London

D.   New York

A.  Gulf Coastal Plains

B. Eastern European

C. Central Asian

D. Western Desert

Question 7

 

A.   Cairo

B.   Dubai

C.   Johannesburg

D.   Nairobi

A.   Eastern Africa

B.   Sahara Basin

C.   South Africa

D.   Karoo Basin

Question 8

 

A.   Paris

B.   Bonn

C.   Rome

D.   Madrid

A.   Southern Europe

B.   Germanic Basin

C.   Parisian Basin

D.   Alpine Aquifer

 

Collapse and uncheck GLOBAL PERSPECTIVE.

KARST TOPOGRAPHY

Expand the KARST TOPOGRAPHY folder, and then double‑click and select Dunnellon, Florida.

After the topographic map displays in Google Earth, expand the Feature A folder, and then select both Feature A and Feature A Profile.
Note: You might have to zoom out to clearly see Feature A.

Notice that the contour lines are enclosed and hachured.

Question 9: What do enclosed hachured contour lines topographically represent?

A.   Water body

B.   Hill top or high point

C.   Depression

D.   Unsure about exact location of contour

 

Question 10: What do enclosed contour lines without hachured lines topographically represent?

A.   Water body

B.   Hill top or high point

C.   Depression

D.   Unsure about exact location of contour

 

Question 11: What type of karst landform is Feature A?

A.   Sinkhole

B.   Cave

C.   Cavern

D.   Tower Karst

Right click the term Feature A Profile and select Show Elevation Profile

Question 12: What is the relief (difference in elevation between maximum elevation and minimum elevation) within Feature A using the elevation profile (in feet)? (Select the answer closest to what you see in your elevation profile window).

 

A.   70 feet

B.   1,393 feet

C.   900 feet

D.   9 feet

 

Uncheck the folder Feature A. Verify Dunnellon, Florida is still enabled, and then double‑click and select Feature B.

Question 13: Why would these features have to be on the surface?

A.   Ground is too soft to construct them underground

B.   Ground is too wet to construct them underground

C.   Risk of wastewater contaminating groundwater

D.   Risk of groundwater contaminating wastewater

 

Uncheck Feature B. Verify Dunnellon, Florida is still enabled, and then double‑click and select Feature C.

Question 14: What is this feature?

A.   A lake

B.   A pond

C.   A spring

D.   A swamp

Uncheck Feature C. Verify Dunnellon, Florida is still enabled, and then double‑click and select Feature D.

Question 15: What is this feature?

A.   Stream

B.   Road

C.   Trail

D.   River

Uncheck Feature D. Double‑click and select Feature E. Notice what the feature looks like in the Topographic map.

Uncheck the Dunnellon, Florida topographic map. Use the Historical Imagery option to set the date to 1/5/1999. Compare the water in the feature in 1999 to the water feature on 1/17/2010.

Question 16: What has happened to the water level in Feature D?

A.   The water level has increased

B.   The water level has decreased

C.   The water level has remained the same

D.   Unable to determine

 Uncheck Dunnellon, Florida.

Now we will go to Mt. Gambier, Australia.

Double‑click and select Umpherston Sinkhole. Click the link on the call out box for Umpherston Sinkhole and watch the short video clip.

Question 17: What is this sinkhole used for?

A.   Landfill

B.   Garden

C.   Swimming pool

D.   Golf course

Collapse and uncheck KARST TOPOGRAPHY

TOWER KARST LANDSCAPES

Expand the TOWER KARST LANDSCAPES folder.

Double‑click and select Tower Karst.

This is an example of tower karst in southern China, near Guilin, in Guangxi Province. These towers are the final remaining pieces of a limestone outcrop. The rest of the limestone has been weathered and eroded. The slope of these landscapes can be quite steep.

Select Slope. Right‑click Slope, and then select Show Elevation Profile.

Question 18: What is the average positive slope (percentage)? (Select the answer closest to what you see in your elevation profile window).

A.   80%

B.   32%

C.   74%

D.   -91%

Question 19: What land use is found throughout the valleys? (Hint: you may have to pan around the image).

A.   Commercial buildings

B.   Industrial complexes

C.   Agricultural fields

D.   Golf courses

From the video you watched in the Introduction part of this Module, we know that there are many caves and caverns in the Karst landscapes of Florida.

Question 20: Would you expect to find many caves present in the tower karst landscape?

A.   Yes, because caves are a common feature of karst landscapes

B.   No, because erosion has exposed the caves

C.   Yes, because high water levels create caves

D.   No, because low water levels create caves

Collapse and uncheck TOWER KARST LANDSCAPES

 

 

CAVES AND CAVERNS

Expand CAVES AND CAVERNS. The following is a list of four of the most spectacular caves and caverns located in the world. Click Longest cave to begin answering the following questions.

  Cave Name Country
Question 21: Longest Cave – This is the longest cave system in the world, at over 627 km A.   Krubera Cave

B.   Mammoth Caves

C.   Gatrell Caves

D.   Antarctic Caves

A.   USA

B.   Canada

C.   Russia

D.   Australia

Question 22: Deepest Cave – This is the deepest cave in the world, at 2,191 m A.   Krubera Cave

B.   Mammoth Caves

C.   Gatrell Caves

D.   Lechuguilla Cave

A.   USA

B.   Georgia

C.   Russia

D.   France

Question 23: Scientists Only – As part of the Carlsbad Caverns National Park, the pristine condition and unique speleothems (cave formations) allow only cave scientists and geologists to have access A.   Krubera Cave

B.   Mammoth Caves

C.   Gatrell Caves

D.   Lechuguilla Cave

A.   USA

B.   Spain

C.   Egypt

D.   Australia

Question 24: Sacred Space –This cave – arguably a sacred space to Paleolithic peoples- contains over a thousand cave paintings, some of which date back 17,000 years A.   Krubera Cave

B.   Mammoth Caves

C.   Lascaux Cave

D.   Lechuguilla Cave

A.   Russia

B.   France

C.   Canada

D.   Australia

 

Collapse and uncheck CAVES AND CAVERNS.

 

GROUNDWATER

Expand the GROUNDWATER folder. Double‑click and select Gray County, Kansas.

This is Gray County, Kansas. As you can tell from the center pivot irrigation circles, agriculture is the dominant land use in the county. The Arkansas River – running west to east – bisects the county. There is not enough water in the river to provide sufficient water for irrigation. Therefore, water source for irrigation is groundwater.

We cannot see the aquifer that is supplying the water for irrigation, but we do have well information that indicates the depth of the water table. In general, we assume the deeper the water table, the deeper the well.

Double‑click and select Well Depths.

This map shows the depth of the water table. It was created using data from 100 wells. The more yellow the area, the shallower the well and the more blue, the deeper. The deepest wells have a depth of approximately 500 feet.

Double‑click and select, Surface Profile. Right‑click Surface Profile, and then select Show Elevation Profile.

This surface profile line is approximately 25 miles in length and the elevation varies by 24 meters only. This is not much change in elevation over 25 miles.

With the elevation profile showing at the bottom of the screen, run your cursor along the x-axis. Look at the position of the red arrow, relative to the well depth map.

Question 25: What is the relationship between surface elevation and well depth?

A.   In general, the higher the land elevation, the deeper the well depth

B.   In general, the lower the land elevation, the deeper the well depth

C.   In general, the higher the land elevation, the shallower the well depth

D.   Unable to tell from image

 

Question 26: What does this relationship suggest?

A.   In this area, groundwater levels tends to rise and fall with the topography of the land

B.   In this area, groundwater levels are relatively the same

C.   In this area, wells are only drilled where the groundwater level is near the surface

D.   Unable to determine.

Double‑click and select Withdrawal.

This is a map of the High Plains aquifer showing changes in the water table level for a twenty year period (1980-1999). Green areas are relatively stable, but as the color changes from yellow to red to pink, the level of the water table falls, over 60 feet in the pink areas. The dominant land use is agriculture.

Question 27: Why is the water level in some portions of the High Plains aquifer dropping? (Check all that apply).

A.   Agricultural use is withdrawing water

B.   Recharge rates are less than withdrawal rates

C.   Recharge rates are more than withdrawal rates

D.   Unable to determine

 

 

 

Sources:

Circle of Blue. 2011. http://www.circleofblue.org/waternews/2010/world/chinas-karst-region-infographics/ Accessed May 23, 2011.

Page 3. Photo: Groundwater emerging from a limestone cave, Tennessee, USA (Photo courtesy of Dr. Nancy Hoalst-Pullen)

Page 4. Photo: Tower karst landforms, Guangxi Province, China. (Photo courtesy of Dr. Mark W. Patterson)

Page 5. Photo: Center pivot irrigation using groundwater. (Google Earth  at 38 05 18N, 99 02 48W)

 

Page 6. Photo: A sign denoting subsidence from 1925-1977 in the San Joaquin Valley, California, USA. (USGS) http://water.usgs.gov/ogw/pubs/fs00165/

Page 7. Photo: Karst landscape in southern France. (Wikimedia) http://upload.wikimedia.org/wikipedia/commons/e/e9/Karst_minerve.jpg

 

 

Extra resource: http://ga.water.usgs.gov/edu/quizgw.html

Caregivers Robots in family

ONE HOUR ONLY

 

Attached are 4 articles that talk about the benefits of the Caregivers Robots in family. Look for two benefits from two separate articles and look for a supporting quote. You’ll need the 2 quotes about any two benefits to write the two paragraphs.

Example: In paragraph 1 you’ll choose from one article one quote that support Benefit one. For example lets say the benefit you found and want to talk about is (fast service). You copy what the author said without changing his words and paste it AS IT IS. Then you start writing the paragraph in this way:

Paragraph 1: Benefit one
1. Intro to the quote: Look at the quote you chose and what the author said about it and write an intro before it. (Introduction about the quote).
2: The quote it self: According to ….. and the quote that you have found about Benefit one.
3: Explaining the quote: Talk about the quote with your own words. Explain it more.
4: Experience: It could be a research or an experience you heard about, a movie or anything. But it has to be an experience you had. Like you need to start with the word I. Example: There is this movie that I saw once OR I read a research that was done about Robots shows.

Paragraph 2: Benefit two
1. Intro to the quote:  Look at the quote you chose and what the author said about it and write an intro before it. (Introduction about the quote).
2: The quote it self: According to ….. and the quote that you have found about Benefit two.
3: Explaining the quote: Talk about the quote with your own words. Explain it more.
4: Experience: It could be a research or an experience you heard about, a movie or anything. But it has to be an experience you had. Like you need to start with the word I. Example: There is this movie that I saw once OR I read a research that was done about Robots shows.

You have 4 articles below. You need only two quotes from two articles only to support the two benefits.

 

That’s it!

 

NOTE: I want this asap. I want it SIMPLE and very BASIC. I want to read this for a 6th grade child and he will understand every word of it. IF this was not simple and basic and done in one hour. I will not accept it.

 

Oceanography Questions

From Module (5), you will have this question:

  • “Seawater salinity and temperature is the same all over the Earth.” Is this statement true or false? In your answer discuss the processes affect both seawater salinity and temperature. Then, explain salinity and temperature profiles with depth in the ocean and how they differ from surface salinity and temperature. Use complete sentences and specific examples from your learning.

From Module (6), you will have this question:

  • What is a hurricane? What factors increase the intensity of a hurricane? What are the effects of hurricanes on shore? Describe the characteristics of hurricanes that cause fatalities, injuries and destruction to human property. Then, list and describe at least four factors that contributed to the devastation of southern Louisiana during Hurricane Katrina. Include both natural and man-made causes in your description. Use complete sentences and specific examples from your learning.

 

Short answer questions MUST be answered in complete sentences and your own words. Your answer should be 5-10 sentences in lengthYou will receive a zero for copied answers or answers that are not grammatically correct.Your answer to short answer questions should fully demonstrate your knowledge of concepts from the modules.

 

Chapter 5 & 6

Textbook: Essentials of Oceanography, 11th edition, Alan P trujillo & Haarold V Thurman

NO LONGER THAN 10 SENTENCES, PLEASE

Economics Final Exam

1). The DeBeers company is a profit-maximizing monopolist that exercises monopoly power in the distribution of diamonds. If the company earns positive economic profits this year, the price of diamonds will:

Exceed the marginal cost of diamonds but equal to the average total cost of diamonds.

Exceed both the marginal cost and the average total cost of diamonds.

Be equal to the marginal cost of diamonds.

Be equal to the average total cost of diamonds.

2). Using 100 workers and 10 machines, a firm can produce 10,000 units of output; using 250 workers and 25 machines, the firm produces 21,000 units of output. These facts are best explained by:

Economies of scope

Diseconomies of scale

Diminishing marginal productivity

Economies of scale

3). Suppose that college tuition is higher this year than last and that more students are enrolled in college this year than last year.  Based on this information, we can best conclude that:

despite the increase in price, quantity demanded rose due to some other factors changing.

the demand for a college education is positively sloped.

the law of demand is invalid.

this situation has nothing to do with the law of demand.

4). A monopoly firm is different from a perfectly competitive firm in that:

A monopolist’s demand curve is perfectly inelastic whereas a perfectly competitive firm’s demand curve is perfectly elastic.

A competitive firm has a u-shaped average cost curve whereas a monopolist does not.

A monopolist can influence market price whereas a perfectly competitive firm cannot.

There are many substitutes for a monopolist’s product whereas there are no substitutes for a competitive firm’s product.

5). The best example of positive externality is:

Alcoholic beverages

Pollution

Education

Roller coaster rides

6). The theory that quantity supplied and price are positively related, other things constant, is referred to as the law of:

supply

profit maximization

opportunity cost

demand

7). A reduction in the supply of labor will cause wages to:

Decrease and employment to decrease.

Increase and employment to increase.

Decrease and employment to increase.

Increase and employment to decrease.

8). Other things held constant in a competitive labor market, if workers negotiate a contract in which the employer agrees to pay an hourly of $17.85 while the market equilibrium hour rate is $16.50, the:

Quantity of workers demanded will exceed the quantity of workers supplied.

Quantity of workers supplied will exceed the quantity of workers demanded.

Supply of labor will decrease until the equilibrium wage rate is $17.85.

Demand for labor will increase until the equilibrium wage rate is $17.85.

9). Alex is playing his music at full volume in his dorm room. The other people living on his floor found this to be a nuisance, but Alex doesn’t care. Alex’s music playing is an example of:

Pareto externality

Positive externality

Negative externality

Normative externality

10). Oligopoly is probably the best market for technological change because:

The typical oligopoly has the funds to carry out research and development and believe that its competitors are innovating, which motivates it to conduct research and development.

The typical oligopoly lacks the funds to carry out research and development and therefore will use basic research from universities.

Research and development occurs only if government subsidizes such activity, and government tends to subsidize oligopolies.

The typical oligopoly keeps price very close to average total cost because it fears the entry of new rivals if its profits are excessively high.

11). A perfectly competitive firm facing a price of $50 decides to produce 500 widgets. Its marginal cost of producing the last widget is $50. If the firm’s goal is to maximize profit, it should:

Produce more widgets

Produce fewer widgets

Continue producing 500 widgets

Shut down

12). Graphically, a change in price causes:

the demand curve to shift.

both supply and demand to shift.

a movement along a given supply curve, not a shift.

the supply curve to shift.

13). In 1997, the federal government reinstated a 10 percent excise tax on airline tickets. The industry tried to pass on the full 10 percent ticket tax to consumers but was able to boost fares by only 4 percent. From this you can conclude that the:

Supply of airline tickets is perfectly inelastic.

Supply elasticity of airline tickets is less than infinity.

Demand elasticity for airline tickets is greater than zero in absolute value.

Demand for airline tickets is perfectly inelastic.

14). In 2011, the Department of Justice sued AT&T to block its merger with the cell phone service provider T-Mobile. To defend itself against the charge, AT&T argued that the:

Combined company could raise prices, allowing it to survive in a rapidly changing market.

Government had no authority to block mergers in the telephone industry.

Government had guaranteed it exclusive control of cell phone service.

Merger would improve and expand cellular service to consumers.

15). The law of diminishing marginal productivity implies that the marginal product of a variable input:

Never declines

Always declines

Is constant

Eventually declines

16). Suppose OPEC announces it will increase production. Using supply and demand analysis to predict the effect of increased production on equilibrium price and quantity, the first step is to show the:

supply curve shifting to the right.

demand curve shifting to the left.

demand curve shifting to the right.

supply curve shifting to the left.

17). Many call centers that provide telephone customer services for U.S. companies have been established in India, but few or none have been established in China. Why?

China is at a more advanced stage of economic development than India.

China lacks the political infrastructure to support call centers.

Indian labor costs are equal to Chinese labor costs.

Chinese labor lacks the specific language skills needed to make call centers profitable in China.

18). Suppose people freely choose to spend 40 percent of their income on health care, but then the government decides to tax 40 percent of that person’s income to provide the same level of coverage as before. What can be said about deadweight loss in each case?

There is no difference because the total spending remains the same and the health care purchased remains the same.

Taxing income results in less deadweight loss because government knows better what health care coverage is good for society.

Taxing income results in deadweight loss, and purchasing health care on one’s own doesn’t result in deadweight loss.

There is no difference between goods that are purchased in the market in either case.

19). At one time, sea lions were depleting the stock of steelhead trout. One idea to scare sea lions away from the Washington coast was to launch fake killer whales, which are predators of sea lions. The cost of making the first whale is $16,000 ($5,000 for materials and $11,000 for the mold). The mold can be reused to make additional whales, and so additional whales cost $5,000 each. Based on these numbers, the production of fake killer whales exhibits:

Diminishing marginal product

Decreasing returns to scale

Constant returns to scale

Increasing returns to scale

20). There are many restaurants in the city of Raleigh, each one offering food and services that differ from those of its competitors.  There is also free entry of sellers into the market, and each seller serves a very small fraction of the total number of meals served each day.  The restaurant industry in Raleigh is best characterized as:

Perfectly competitive.

Monopolistically competitive.

A pure monopoly.

An oligopoly.

21). Suppose foreign shrimp prices drop by 32 percent and importers gain a 90 percent market share.  From this information, what would economists strongly suspect about this industry?

Foreigners have a comparative advantage in shrimping.

The large sales of foreigners indicate they are better strategic business bargainers than Americans are.

Americans have a comparative advantage in shrimping.

Foreign sellers probably are colluding on price to maximize profits.

22). For a monopolist, the price of a product:

Is less than the marginal revenue.

Exceeds the marginal revenue.

Equals the marginal cost.

Equals the marginal revenue.

23). When Ross Perot ran for president as a third party candidate in 1992, he argued that free trade with Mexico would result in massive job losses in the United States because Mexican wages were so low. Which of the following is the best explanation of why few economists agreed with Perot?

Although economics predicted that unemployment would rise, the increased profits of corporations would raise stock prices enough to compensate for the lost jobs.

Economists did not believe any jobs would be lost in the United States.

Although economists believed that in some areas the United States would lose jobs, they expected the United States would gain jobs in other areas.

Economics believed that the U.S. unemployment would rise.

24). Mr. Woodward’s cabinet shop is experiencing rapid growth in sales. As sales have increased, Mr. Woodward has found it necessary to hire more workers. However, he has observed that doubling the number of workers has less than doubled his output. What is the likely explanation?

The law of demand

The law of diminishing marginal productivity

The law of supply

The law of diminishing marginal utility

25). Price elasticity of demand is the:

Change in the quantity of a good demanded divided by the change in the price of that good.

Percentage change in price of that good divided by the percentage change in the quantity of that good demanded.

Percentage change in quantity of a good demanded divided by the percentage change in the price of that good.

Change in the price of a good divided by the change in the quantity of that good demanded.

26). Which of the following statements is true about a downward-sloping demand curve that is a straight line?

The slope remains the same, but elasticity falls as you move down the demand curve.

The slope remains the same, but elasticity rises as you move down the demand curve.

The slope and the elasticity fall as you move down the demand curve.

The slope and elasticity are the same at all points.

27). Strategic decision making is most important in:

Monopolistically competitive markets.

Monopolistic markets.

Oligopolistic markets.

Competitive markets.

28). Cartels are organizations that:

Encourage price wars.

Keep markets contestable.

Use predatory pricing to monopolize industries.

Coordinate the output and pricing decisions of a group of firms.

29). Microeconomics and macroeconomics are:

Interrelated because what happens in the economy as a whole is based on individual decisions.

Interrelated because both are often taught by the same instructors.

Not related because they are taught separately.

Virtually identical, though one is much more difficult than the other.

30). Microeconomics is the study of:

a firm’s pricing policies

inflation

unemployment

Collaborative Learning Community

This is a Collaborative Learning Community (CLC) assignment.

 

Select an endangered species and create a 15-slide PowerPoint that outlines the following:

  1. Explain the causes for the decline of this species; include statistics that demonstrate the decline of the species, when available.
  2. Explain how human activities may have affected the species.
  3. Provide information on current efforts by conservationist to preserve this endangered species. Include information on how conservationists are taking into account preserving the entire ecosystem of the endangered species.
  4. One slide should include a sample picture that could be used for a marketing campaign to save the endangered species.
  5. List a minimum of four peer reviewed references on the last slide according to the guidelines found in the GCU Style Guide, located in the Student Success Center.
  6. Include speaker notes throughout the presentation slides.

Note: Each student is to include their name in the notes section of the slides that they worked on.

 

While GCU style format is not required for the body of this assignment, solid academic writing is expected, and in-text citations and references should be presented using GCU documentation guidelines, which can be found in the GCU Style Guide, located in the Student Success Center.

 

This assignment uses a grading rubric. Instructors will be using the rubric to grade the assignment; therefore, students should review the rubric prior to beginning the assignment to become familiar with the assignment criteria and expectations for successful completion of the assignment.

 

 

You are not required to submit this assignment to Turnitin, unless otherwise directed by your instructor. If so directed, refer to the Student Success Center for directions. Only Word documents can be submitted to Turnitin.

Statistics

2. The formula for a regression equation is Y’ = 2X + 9.

 

a. What would be the predicted score for a person scoring 6 on X?

 

b. If someone’s predicted score was 14, what was this person’s score on X?

 

6. For the X,Y data below, compute:

 

a. r and determine if it is significantly different from zero.

 

b. the slope of the regression line and test if it differs significantly from zero.

 

c. the 95% confidence interval for the slope.

 

X Y
4 6
3 7
5 12
11 17
10 9
14 21

 

 

 

5. At a school pep rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of all of the students in the school in the basket and that they randomly drew 36 names out of this basket. Of the prize winners, 6 were freshmen, 14 were sophomores, 9 were juniors, and 7 were seniors. The results do not seem that random to you. You think it is a little fishy that sophomores organized the raffle and also won the most prizes. Your school is composed of 30% freshmen, 25% sophomores, 25% juniors, and 20% seniors.

 

a. What are the expected frequencies of winners from each class?

 

b. Conduct a significance test to determine whether the winners of the prizes were distributed throughout the classes as would be expected based on the percentage of students in each group. Report your Chi Square and p values.

 

c. What do you conclude?

 

14. A geologist collects hand-specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of association between color and texture for these limestones? Explain your answer.

 

 

 

11.1 Facts About the Chi-Square Distribution

 

Decide whether the following statements are true or false.

 

70. The standard deviation of the chi-square distribution is twice the mean.

 

11.4 Test for Homogeneity

 

For each word problem, use a solution sheet to solve the hypothesis test problem. Go to Appendix E for the chi-square solution sheet. Round expected frequency to two decimal places.

 

102. Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place is shown in Table 11.55. Conduct a test for homogeneity at a 5% level of significance.

 

Table 11.55

 

  French Toast Pancakes Waffles Omelettes
Men 47 35 28 53
Women 65 59 55 60

 

 

 

Use the following information to answer the next twelve exercises: Suppose an airline claims that its flights are consistently on time with an average delay of at most 15 minutes. It claims that the average delay is so consistent that the variance is no more than 150 minutes. Doubting the consistency part of the claim, a disgruntled traveler calculates the delays for his next 25 flights. The average delay for those 25 flights is 22 minutes with a standard deviation of 15 minutes.

 

113. df = ________

 

117. Let α = 0.05

 

Decision: ________

 

Conclusion (write out in a complete sentence.): ________

 

12.3 The Regression Equation

 

66. Can a coefficient of determination be negative? Why or why not?

 

Use the following information to answer the next two exercises. The cost of a leading liquid laundry detergent in different sizes is given in Table 12.31.

 

Size (ounces) Cost ($) Cost Per ounce
16 3.99  
32 4.99  
64 5.99  
200 10.99  

 

 

 

82.

 

a. Using “size” as the independent variable and “cost” as the dependent variable, draw a scatter plot.

 

b. Does it appear from inspection that there is a relationship between the variables? Why or why not?

 

c. Calculate the least-squares line. Put the equation in the form of: ŷ = a + bx

 

d. Find the correlation coefficient. Is it significant?

 

e. If the laundry detergent were sold in a 40-ounce size, find the estimated cost.

 

f. If the laundry detergent were sold in a 90-ounce size, find the estimated cost.

 

g. Does it appear that a line is the best way to fit the data? Why or why not?

 

h. Are there any outliers in the given data?

 

i. Is the least-squares line valid for predicting what a 300-ounce size of the laundry detergent would you cost? Why or why not?

 

j. What is the slope of the least-squares (best-fit) line? Interpret the slope.

 

Inferences ???

 

My younger brother had a run in earlier with Médecins Sans Frontières.  He narrowly escaped from an adverse verdict by the court. He asked my oldest brother if he can conduct a survey for him about justice in the Canadian Court. An initial survey was performed right after Médecins Sans Frontières accused my brother of wrong doing.  Of 1852 customers, 53 were against the aggressive tactics of Médecins Sans Frontières.  After my brother was cleared by the court, a follow-up survey was performed.  Of 4699 customers, 1751 said they did not agree with the aggressive tactics of Médecins Sans Frontières.  At the 1% significance level, do the data suggest that a higher percentage of customers were against Médecins Sans Frontières after the court case?

Art Homework Help

Please read these directions and the “Art 100 Museum Paper Grading Rubric” (attached above) before visiting your museum of choice.

  • Attached Visual Record: 5 points

Take a photo in front of the museum’s sign or other identifying marker; a scanned copy of a brochure, postcard front and back, or a ticket stub from the museum will also earn full credit.

  • Format/Style: 10 points

Paper must be typed, double spaced, at least 3-4 pages in length, include a heading with name, date submitted and the course name and number (Intro to Art/ART 100).

  • Grammar, spelling and sentence structure must be checked and not impede comprehension.

Titles of art works must be italicized or underlined (not in quotation marks!).
Sources must be cited properly, if used.

Content/body:

  • Introduction: 10 points
  • Include name of museum and date of visit.
  • Identify a commonality or theme between the works (this could be a similar medium, subject matter, art period/movement, color or other formal element, etc.).
  • THREE WORKS: 90 points (30 points per work-complete these steps for EACH work you include in your paper):
  • Identify artist, title (in italics!), date of work and medium.
  • Describe the content and/or subject matter (describe what you see when you look at the work).
    ( For example: ” Agnolo Bronzino’s Eleanor of Toledo from 1544 is an oil on wood portrait of a mother seated with her young son standing on her right side. The mother is wearing an elaborate dress with black and gold details. The child has blond hair and is wearing a dark blue jacket and is smiling slightly.)
  • Identify a style or movement the work is associated with;  use your Preble’s textbook to place the work in its style category. Explain how it fits into this particular art movement.
    ( For example: ” Eleanor of Toledo was completed during the beginning of the Mannerist art movement, which took place in Italy beginning in the 1520s. This painting is characteristically Mannerist because the figures in the painting have exaggerated and elongated proportions-especially fingers-and are painted with rich colors used to imply texture.”)
  • Identify 2-3 formal elements (define each formal element using your textbook; identify each formal element in the art work).
    ( For example: “The dress depicted in Bronzino’s Eleanor of Toledo demonstrates the artist’s use of texture. Texture is the perceived surface quality of an object. In the painting the fabric of the mother’s dress appears to be silk with velvet details and shiny pearl and gold beads…”)
  • Conclusion: 15 points
  • Give your personal reaction to the three works you chose (what you liked/did not like).
  • Describe how this assignment expanded your appreciation of art.

Biology Homework Help

During this course, many environmental issues will be examined in detail. The Final Report is a project that will give you an opportunity to focus on an area of interest to you. You will research and write an essay on an environmental issue position. The research essay will be written in stages with different assignments/tasks throughout this course.

 

To successfully complete Part 1, do the following:

  1. Identify one environmental issue that has affected you or someone you know. The issue you choose will be the topic for your Final Report. For help in selecting topics, refer to the “Suggestions for Environmental Topics.”
  2. Complete the Final Report Outline as specified in the directions.
  3. Write a complete introductory paragraph that thoroughly presents the selected environmental issue and grabs the audience’s attention. Comprehensively covers the major points of the report as well as presents the thesis statement. Initial positions are supported with logical and convincing statements.

A minimum of three peer reviewed resources are required.

 

While GCU style format is not required for the body of this assignment, solid academic writing is expected, and in-text citations and references should be presented using GCU documentation guidelines, which can be found in the GCU Style Guide, located in the Student Success Center.

 

This assignment uses a grading rubric. Instructors will be using the rubric to grade the assignment; therefore, students should review the rubric prior to beginning the assignment to become familiar with the assignment criteria and expectations for successful completion of the assignment.

 

 

You are not required to submit this assignment to Turnitin, unless otherwise directed by your instructor. If so directed, refer to the Student Success Center for directions. Only Word documents can be submitted to Turnitin.

Environmental Science help

1. Do you think that the costs of the REDD (Reducing Emissions from Deforestation and Degradation) program ($20-30 billion per year) will yield sufficient results to make the program worth its expense? As the largest contributors to global CO2 emissions, do you think that developed countries have a responsibility to pay for such programs in developing countries? Why, or why not?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 

2. Describe the three types of biodiversity in an ecosystem. Why is biodiversity valued in an ecosystem?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 

3. How can preserve size and shape impact species survival? Discuss the importance of core habitats and edge effects. If you were a regional or urban planner for your area, how would you take these concepts into account when making residential and commercial development decisions for your community?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 

4. Matching

 

A.
Broad-leaf forests that occur between 30o and 55o latitude where rainfall is plentiful
B.
Occur where rainfall is abundant and temperatures are warm or hot year-round
C.
Temperatures are below freezing most of the year, and only small, hardy vegetation can survive
D.
Occur where precipitation is uncommon and slight
E.
Northern forests that lie between about 50o and 60o north latitude
F.
Drought-tolerant forests that look brown and dormant in the dry season, but become green during rainy months
Tropical seasonal forest
Tundra
Boreal forests
Tropical moist forests
Deserts

Econ Question

A firm in a Perfectly Competitive Market has the following short run cost function (/ equation / formula):

TC=200Q-6Q^2+Q3+400

a) Using the cost definitions you have learnt:

i. Determine which part of the equation above represents the total fixed cost, TFC.

ii. Determine which part of the equation above represents the total variable cost, TVC.

iii. Using the definition of AFC, determine the equation of average fixed cost.

iv. Using the definition of AVC, determine the equation of average variable cost.

 

b) Using the marginal cost function (/ equation / formula): MC=200-12Q+3Q^2, and the other

cost equations you obtained in part (a), fill in the table below

(NOTES: if a value is not a whole number, report it with two decimal points. You are allowed to

use a calculator to help with the calculations. If this question re-appears in your repeat

submissions in tutorials – you will be given a table with just 3 relevant rows).

Q TFC TVC TC ATC AVC MC

0

1

2

3

4

5

6

7

8

9

10

 

c) Based on your data calculated in part (b), plot AVC, ATC and MC curves on one pair of axes – half

an A4 page. Identify any key points on your graph. (NOTE: You may use a computer to help know

the shape of each curve, but you have to hand-draw these curves in your assignment).

d) Assume that the current market price is $296. Determine the quantity produced by the firm and its

economic profit/loss. Reproduce the graph in part (c) and show the economic profit/loss on this

graph.

e) Now suppose that the market price falls to $200. How many units of the product should the firm

produce? Does it make an economic profit or loss? If it is a loss, would it shut down temporarily?

Explain.

f) Now assume that in the long run, the firm’s cost functions / equations / formulas are:

TC=200Q-6Q^2+Q3 and MC=200-12Q+3Q^2. Compare and contrast these equations to the

short run TC and MC equations in part (a) and part (b) and explain why they are similar or different.

g) Based on the long run equations in part (f) and based on the graph in part (c), what is the firm’s

minimum efficient scale and what is the range of output at which the firm is operating in economies

of scale.

h) In the long run if the market price is at $236, what is the firm’s level of output? Explain why.