A7. Suppose we were interested in studying the self-esteem of men versus women (Factor A) in two exercise status groups—nonexercisers versus exercisers, Factor B—with 20 people in each of the four groups. Use the following information to compute three F tests, and determine which, if any, is statistically significant at the .05 level:

Means: Male Male exercisers: 39.0 nonexercisers: 37.0 Female Female exercisers: 34.0 nonexercisers: 29.0 All exercisers: 36.5 All nonexercisers: 33.0 All males: 38.0 All females: 31.5 Sums of Squares: SST 1,190.50 SSW 1,025.0 SSA 74.50 SSB 37.0 SSAB 54.00