For the Kruskal-Wallis test, if the decision from the test is "reject H₀," then:
A) none of the populations under consideration is different (i.e., the samples are from identical populations).
B) at least two of the populations under consideration are different.
C) at least two of the population means are different, whereas the other characteristics are assumed to be the same.
D) there is no need for further analysis, as this test fully describes the populations.

Question

For the Kruskal-Wallis test, if the decision from the test is "reject H₀," then:
A) none of the populations under consideration is different (i.e., the samples are from identical populations). 
B) at least two of the populations under consideration are different. 
C) at least two of the population means are different, whereas the other characteristics are assumed to be the same. 
D) there is no need for further analysis, as this test fully describes the populations.

Quizplus · Accepted Answer

If the decision from the Kruskal-Wallis test is to reject H₀, it means that there is strong enough evidence to conclude that not all of the populations under consideration are identical. Therefore, at least two of the populations must be different.

For the Kruskal-Wallis Test, If the Decision from the Test