Suppose the Kruskal-Wallis Test Was Used to Compare Four Groups

Multiple Choice

Suppose the Kruskal-Wallis test was used to compare four groups. If the test statistic value was found to be 9.545, using α = 0.05 we should

A) reject the null hypothesis
B) not reject the null hypothesis
C) conclude that the groups are all the same
D) reject the null hypothesis and conclude that the groups are not all the same
E) not reject the null hypothesis and conclude that the groups are all the same