1 A researcher wished to compare the automobile color prefer

1. A researcher wished to compare the automobile color preferences of men and women. An experiment was performed recording the preferences of 10 men and 10 women. If the sum of squares of the ranking differences is equal to 11.1, compute the Spearman rank correlation coefficient rs.

a. 0.966

b. 0.933

c. 0.992

d. 0.870

Solution

As

rs = 1 - 6*Sum(d^2) / [n(n^2 - 1)]

As Sum(d^2) = 11.1
n = 10

then

rs = 0.933 [OPTION B]