Managers at the fitness center believed that word-of-mouth recommendations from friends bring in new members who spend more money at AFC than those who don't join the center because of a friend's recommendation.
a. Using the independent samples f-test, determine whether or not managers' assumptions are correct.
b. Would your answer to part (a) change if the level of significance for determining whether or not a result is statistically significant were changed from 0.05 to 0.10? Explain.