Is it true that parametric tests are generally more powerful than nonparametric tests?

Question

1. 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 Flavor
A	B	C	D
12	18	28	22

 

1. Is 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

Answer 1

dont hav no idea wot yu meen bi "parametrik tests"

But me thank it hav sumthun tu du with "soshal" tests...so all bets off.

However, yer data sae 28 like 1 thang & oenlee 12 like sumthun els

That differ is most definut a solid test.

Go with 28