Question - Predicting U.S. movie revenue. Refer to the previous two exercises. Get Smart was released in 2008, had a budget of $80.0 million, was shown in 3911 theaters grossing $38.7 million during the first weekend, and had an IMDb rating of 6.8. Use your software to construct
(a) A 95% prediction interval based on the model with all four predictors.
(b) A 95% prediction interval based on the model using only opening-weekend revenue and IMDb rating.
(c) Compare the two intervals. Do the models give similar predictions?