Which of the Following Distributions Approximate Kruskal-Wallis Test Statistic H

Multiple Choice

Which of the following distributions approximate Kruskal-Wallis test statistic H when the problem objective is to compare k distributions and the sample sizes are greater than or equal to 5?

A) normal distribution
B) chi-squared distribution with k - 1 degrees of freedom
C) Student t-distribution with k - 2 degrees of freedom
D) Student t-distribution with k - 3 degrees of freedom
E) either chi-squared distribution with k - 5 degrees of freedom or Student t distribution with k + 5 degrees of freedom