When examining a plot of population means for a two-way ANOVA,what should you conclude if the two lines completely overlap and have zero slope?
A)There is a main effect of A only.
B)There is a main effect of B only.
C)There is an interaction effect only.
D)There are no main effects or an interaction.

Question

Quizplus · Accepted Answer

If the two lines completely overlap and have zero slope in a plot of population means for a two-way ANOVA, it indicates that there are no main effects or an interaction. This means that the factor A and factor B do not have significant effects on the dependent variable, and there is no relationship between the two factors.

When Examining a Plot of Population Means for a Two-Way