The null hypothesis in the Kruskal-Wallis test is _______.
A)all populations are identical
B)all sample means are different
C)x and y are not correlated
D)the mean difference is zero
E)all populations are not identical

Question

Quizplus · Accepted Answer

The null hypothesis in the Kruskal-Wallis test is that all populations are identical. The test is used to compare more than two independent groups to determine if there is a significant difference between their population distributions. The alternative hypothesis is that at least one population is different from the others. Therefore, the correct answer is A) all populations are identical.

The Null Hypothesis in the Kruskal-Wallis Test Is _______