In Figure 11.5, we show three combinations of main effects and interactions for a 2 × 2 factorial design. Using the same 2 × 2 structure, with factor A defining the rows and factor B defining the...

In Figure 11.5, we show three combinations of main effects and interactions for a 2 × 2 factorial design. Using the same 2 × 2 structure, with factor A defining the rows and factor B defining the columns, create a set of means that produce each of the following patterns:

a. A main effect for factors A and B, but no interaction.

b. A main effect for factor A and an interaction, but no main effect for factor B.

c. A main effect for both factors and an interaction.