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)

Question

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)

Quizplus · Accepted Answer

Plot (3) would indicate that neither of the main effects are significant but the interaction effect is significant because the lines representing different levels of one factor are not parallel, suggesting an interaction, yet they cross at a point that suggests no main effect difference at that specific level of the other factor.

Based on the Following Plots of Cell Means