Which is the proper way to state the alternative hypothesis for a main effect?
A) H0: an interaction effect does not exist
B) H1: not all µs are equal
C) H1: an interaction effect exists
D) H0: all µs are equal

Question

Quizplus · Accepted Answer

The alternative hypothesis for a main effect is that "not all µs (means) are equal" which is correctly stated in choice B as H1. Option A refers to an interaction effect, which is not the proper way to state the alternative hypothesis for a main effect. Option C is also incorrect as it refers to an interaction effect instead of a main effect. Option D refers to the null hypothesis, not the alternative hypothesis.

Which Is the Proper Way to State the Alternative Hypothesis