1. Explain why the mean of the F distribution for the null hypothesis is 1.0. 2. Imagine that the results of the ice cream experiment had been different. Suppose instead that ratings for the ice cream...

1. Explain why the mean of the F distribution for the null hypothesis is 1.0.

2. Imagine that the results of the ice cream experiment had been different. Suppose instead that ratings for the ice cream were higher whenever more chocolate chips were used, regardless of whether real or artificial vanilla was used. Would this represent an interaction? Why or why not?