The sampling distribution of the Kruskal-Wallis test statistic is well approximated by the:
A)normal distribution.
B)chi-square distribution with k - 1 degrees of freedom,where k is the number of populations.
C)F- distribution with 1 and k - 1 degrees of freedom,where k is the number of Populations.
D)Student's t distribution with n - 1 degrees of freedom.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is a non-parametric test used to compare three or more independent samples or groups. The Kruskal-Wallis test statistic follows a chi-square distribution with (k-1) degrees of freedom, where k is the number of groups or populations being compared. Therefore, the best choice for this question is B.

The Sampling Distribution of the Kruskal-Wallis Test Statistic Is Well