Discussion

dq 1Review the three “Non-parametric” test videos in the Calculations section of the “Statistics Visual Learner” media piece.A researcher is examining preferences among four new flavors of ice cream. A sample of n = 80 people is obtained. Each person tastes all four flavors and then picks a favorite. The distribution of preferences is as follows. Do these data indicate any significance preferences among the four flavors? Test at the .05 level of significance.Ice Cream FlavorABCD12182822dq  2Is it true that parametric tests are generally more powerful than nonparametric tests? If so, give two reasons why you might choose to use a nonparametric test instead of a parametric test.