If the assumption can be made that the populations all have the same shape, the Kruskal-Wallis test becomes a test for the
A) skewness of the k populations.
B) variances of the k populations.
C) medians of the k populations.
D) means of the k populations.

Question

If the assumption can be made that the populations all have the same shape, the Kruskal-Wallis test becomes​ a test for the
A) ​skewness of the k populations.
B) ​variances of the k populations.
C) ​medians of the k populations.
D) ​means of the k populations.

Quizplus · Accepted Answer

If the populations all have the same shape, then the only difference between them is their medians. Therefore, the Kruskal-Wallis test becomes a test for the medians of the k populations.

If the Assumption Can Be Made That the Populations All