When examining a plot of population means for a two-way ANOVA,what is the simplest way to tell if there is an interaction?
A)The two lines will NOT cross.
B)The two lines will be parallel.
C)The two lines will NOT be parallel.
D)There will be a curve in both lines.

Question

Quizplus · Accepted Answer

If the lines for the two factors are not parallel, there is an interaction between the factors. This means that the effect of one factor on the response variable depends on the level of the other factor.

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