Six employees of a grocery store were ranked by customers and their supervisor. At the .05 level find the Spearman rank correlation coefficient.
Employee A B C D E F
Customer rank 5 2 1 4 3 6
Supervisor rank 3 4 1 5 2 6
a. 0.60
b. 0.71
c. 0.85
d. 0.26
This solution calculates the Spearman rank correlation coefficient.