Anxiety Levels

Question

Problem:

A statistics   practitioner wants to test the following hypotheses:

Ho: P= .70

H1: P > .70

a) A random sample   of 100 produced p ^ .73

Calculate the p-value of the test

b) repeat part a with P^=.72.

c) Repeat part a with p^= .71

d) Describe the   effect on the z statistics and its p-value of decreasing the sample proportion.

Question

Compute the standard deviation for each set.
 Set 1: {6, 6, 6, 6, 6, 6, 6}
Set 2: {5, 5, 6, 6, 6, 7, 7}
Set 3: {5, 5, 5, 6, 7, 7, 7}
Set 4: {3, 3, 3, 6, 9, 9, 9}