Exercise

Interpreting the summary table

Based on the summary table of the factorial ANOVA, what can you say about the statistical significance of the variables?

ab_model is loaded in your workspace, so you can have another look at the summary table via summary(ab_model).

50 XP

The main effect for driving difficulty is significant.

The main effect for conversation difficulty is significant.

Only the interaction effect is significant.

There are no main effects, nor an interaction effect.

The main effect for driving difficulty, the main effect for conversation difficulty and the interaction effect are all significant.

This information is not provided in the summary table.