Questions Are Based on the Following Plots of Cell Means

Multiple Choice

Questions are based on the following plots of cell means. Assume that the within-cell variation is very small.
(1)
(2)
(3)
( 4)
-Which plot indicates that neither of the main effects are significant but the interaction effect is significant?

A) plot (1)
B) plot (2)
C) plot (3)
D) plot (4)