The distribution of the sample statistic (H)for the Kruskal-Wallis test is approximately equal to the ________.
A)F-distribution
B)t-distribution
C)chi-square distribution
D)standard normal distribution

Question

Quizplus · Accepted Answer

The distribution of the sample statistic (H) for the Kruskal-Wallis test is approximately equal to the chi-square distribution. Specifically, for large samples and a large number of groups (i.e. at least 5), the distribution of H approaches a chi-square distribution with degrees of freedom equal to the number of groups minus 1.

The Distribution of the Sample Statistic (H)for the Kruskal-Wallis Test