2. A researcher surveyed 12 men whose parents got divorced.His survey included the age of the subjects when their parents got divorced and their confidence that they would some day be happily married themselves (100 point scale - higher score = more confidence).It was predicted that there would be a significant negative relationship. The results are shown below. Use alpha = .01

AgeConfidence Rating

12

34

8

30

11

89

21

69

15

55

7

38

18

78

23

66

22

89

19

79

9

35

15

58

__

X = 15Y = 60

SS_x = 348SS_y = 5198

s_x = 5.62s_y = 21.74

SP_xy = 933

A.Plot these data on the graph.

B.State the null and alternative hypotheses in regards to the correlation coefficient.

C.Make a decision about the null.

a.Calculate Pearson's r and make a decision.

b.Calculate the effect size.

i.Was the effect small, medium, or large?

D.State your conclusion.

E.Relate your conclusion to the research.

F.Calculate the regression equation.

G.What is one's predicted confidence rating if their parents got divorced at age 15?