Question

Find the linear correlation coefficient for the given data.

Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
performance 59 63 65 69 58 77 76 69 70 64
attitude 72 69 78 82 75 87 92 83 87 78


Find the correlation coefficient. Based on the correlation coefficient, which of the following statements would you agree with?

a) better attitudes are associated with better perfomance
b) attitude is a good predictor of performance
c) better performance is caused by better attitudes
d) A and B only
e) A, B, and C