Health insurance administrative costs are the concern for many companies which supply the insurance for their employees. The information below is information collected recently. Let x be the average number of employees in a group health insurance plan and y be average administrative cost as the percentage of claims. Find out the sample correlation coefficient.
|
x
|
4
|
14
|
20
|
47
|
70
|
|
y
|
43
|
42
|
34
|
18
|
18
|
A. -0.914
B. -0.942
C. 0.887
D. 0.942
E. -0.887