Three Groups of Adult Women Engaged in a 12-Week Exercise

Three groups of adult women engaged in a 12-week exercise program designed to help them lose weight. Group A participated in aerobic dance five times weekly, Group B did resistance weight training five times weekly, and Group C did aerobic dance three times weekly and resistance weight training twice a week. At the start and the end of the exercise program, the exercise leader weighed the participants and recorded their weights. To ascertain if there were statistically significant differences in

A) t-test for independent samples.
B) t-test for dependent samples.
C) simple analysis of variance.
D) two-way analysis of variance.
E) multiple regression analysis.