Moral Development Theory

Question

A random sample of size n= 20 was drawn from a population of size N= 200. The measurements shown in the table below were obtained.

38 24 49 24
29 22 52 25
40 51 26 40
26 38 51 40
48 41 46 53
a. Estimate µ with an approximate 95% confidence interval. (round the three decimal places as needed).

b. Estimate p, the proportion of measurements in the population that are greater than 30, with an approximate 95% confidence interval.

Question

10. For the   following scores:    a. find the   regression equation for predicting Y from X   b. Calculate   the predicted Y value for each X   x y     3 6     6 1     3 4     3 3     5 1

Question

Calculate   SP (the sum of products of deviations) for the following scores. NOTE both   means are decimal values, so the computational formula works well.   X Y   0 2   0 1   1 0   2 1   1 2   0 3