PA A number of years ago, the fi re department in Shinbone, Kansas, began recruiting minority group members through an affi rmative action program.

In terms of effi ciency ratings as compiled by their superiors, how do the affi rmative action employees rate? The ratings of random samples of both groups were collected, and the results are reported below (higher ratings indicate greater effi ciency).

Sample 1

(Affi rmative Action)

Sample 2

(Regular)

X —1 = 15.2 X —2 = 15.5 s1 = 3.9 s2 = 2.0 N1 = 97 N2 = 100 Write a sentence or two of interpretation.