Question

Which of the following is not a step in the procedure for two-way ANOVA to test for an interaction effect, an effect from the row factor, and an effect from the column factor?

1) Perform a hypothesis test for the interaction effect
2) Perform a hypothesis test for the effect from the row factor
3) Perform a hypothesis test for the effect from the column factor
4) Perform a hypothesis test for the main effect

Answer 1

The step that is not a part of the procedure for two-way ANOVA to test for an interaction effect, an effect from the row factor, and an effect from the column factor is the hypothesis test for the main effect.

Step-by-step explanation:

The step that is not a part of the procedure for two-way ANOVA to test for an interaction effect, an effect from the row factor, and an effect from the column factor is the fourth step, which is to perform a hypothesis test for the main effect. In two-way ANOVA, the main effect refers to the individual effects of the row factor and the column factor. However, it is not specifically tested as a separate step. Instead, the interaction effect, the effect from the row factor, and the effect from the column factor are tested separately.

Here is a step-by-step explanation of the correct procedure for two-way ANOVA:

1. Perform a hypothesis test for the interaction effect.
2. Perform a hypothesis test for the effect from the row factor.
3. Perform a hypothesis test for the effect from the column factor.