Question: Consider the following scores on two variables X and Y based on a sample

X Y

3 4

4 5

2 3

1 1

The following results were found:

Mean of X = 2 Standard deviation of X = 1.58

Mean of Y = 3 Standard deviation of Y = 1.58

a. Compute the Z scores on X and Y.

b. Compute the Pearson r based on the Z scores.

c. Find the regression equation based on the Z scores.

d. What is the predicted Zy for the following Zx: 1.10, -.50, and 3.75.

e. Is it legitimate here to find the predicted Zy for a Zx of 3.75? Why or why not?