Which of these null hypotheses is applicable for a two-way ANOVA test with interaction?
A) There is interaction between factors A and B.
B) Factor A and factor B means differ.
C) There is no interaction between factors A and B.
D) Factor A and factor B means do not differ.

Question

Quizplus · Accepted Answer

The null hypothesis for a two-way ANOVA test with interaction is that there is no interaction between factors A and B. Choice A is not a null hypothesis but a statement of interest. Choice B is a null hypothesis for a two-way ANOVA test without interaction. Choice D is not applicable because the possibility of factor means differing is already accounted for in the overall ANOVA test.

Which of These Null Hypotheses Is Applicable for a Two-Way