Two-way ANOVA - Practice Problems SET TWO For each graph, indicate if there is a main effect of A, a main effect of B, and/or an interaction of A and B. Graph A Graph B 30 50 45 25 40 20 35 30 15 25 20 10 15 5 10 O A1 A2 B2 A1 A2 B2 -B1 - - - B2 -B1 - - - B2 Graph C Graph D 70 60 50 40 30 20 20 10 10 A1 A2 B2 A1 A2 B2 - 81 - - - B2 - B1 - -- B2 Graph E Graph F 70 60 50 40 30 20 10 0 A1 A2 B2 A1 A2 B2 -81 - - - 82 -B1 - - - B2 Graph A: Graph B: Graph C: Graph D: Graph E: Graph F