For the previous question, what plot would reveal whether a two-way ANOVA might reveal something missing in the average ratings of the two changes? What are the fitted and predicted values in a...

For the previous question, what plot would reveal whether a two-way ANOVA might reveal something missing in the average ratings of the two changes?

What are the fitted and predicted values in a two-way ANOVA? For example, if a randomly selected store such as those in the chapter example were to show the standard package at waist level, how would you expect its sales to change?