In Problem 13.10, you used YouTube trailer views to predict movie weekend box office gross (stored in Movie). Using the results of that problem,

Source: Data extracted from “Box Office Report,” available at bit.ly/2srM34F.

a. determine the coefficient of determination, r², and interpret its meaning.

b. determine the standard error of the estimate.

c. How useful do you think this regression model is for predicting movie weekend box office gross?

d. Can you think of other variables that might explain the variation in movie weekend box office gross?