The data below represent the weight losses for people on three different exercise programs. if we want to test the claim that the three size categories have the same means, why don't we use three separate hypothesis tests for mu 1=mu 2, mu 2=mu 3, and mu 1=mu 3? exercise a exercise b exercise c 2.5 5.8 4.3 8.8 4.9 6.2 7.3 1.1 5.8 9.8 7.8 8.1 5.1 1.2 7.9 a. a hypothesis test for comparing two means does not exist. b. the risk of type ii error increases and becomes too high. c. the risk of type i error increases and becomes too high. d. actually, we do want to use three separate hypothesis tests.