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A group of statisticians held a conference. You, being an opportunistic sort, talked them" all into taking two personality tests. The first test measured the need for achievement (N-Ach) and the second measured the need for affiliation (n-Aff), which is a desire for association with other people. Below are the scores. Calculate the correlation coefficient (17 points). N-Ach N-Aff 28 12 25 14 24 11 23 16 22 22 19 18 25 13 26 Interpretation (3 points): Type answer in red. Dr. Harland studied the relationship between two different tests of Self-Esteem - Test A and Test B. He obtained the following information. (12 BONUS POINTS -SHOW ALL CALCULATIONS) r= 0.84 Sx = 2.86 X = 6.22 SY = 2.17 Y = 5.56 Predict a score for Test B from a Test A score of 15. Predicted Test B score =