Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of three populations. The following data represent independent random samples selected from the three populations: I 66, 23, 55, 88, 58, 62, 79, 49 II 19, 31, 16, 29, 30, 33, 40 III 75, 96, 102, 75, 98, 78

a. What type of experimental design was used?

b. Specify the null and alternative hypotheses you would test.

c. Specify the rejection region you would use for your hypothesis test, at a = .01.

d. Conduct the test at a = .01. Applying the Concepts—Basic