Refer to Data Set 9 in Appendix B and consider the gross amounts from two different categories of movies: Movies with R ratings and movies with ratings of PG or PG-13. Do the results appear to support a claim that R-rated movies have greater gross amounts because they appeal to larger audiences than movies rated PG or PG-13?

Refer to the indicated data set in Appendix B. Use computer software or a calculator to find the means and medians.

Data Set 9: Movies STATDISK: Data set name is Movies. Minitab: Worksheet name is MOVIES.MTW. Excel: Workbook name is MOVIES.XLS. TI-83/84 Plus: Text file names: MVBUD, MVGRS, MVLEN, MVRAT. App name is MOVIES and the file names are the same as for text files. Budget ($) in Millions Gross ($) in Millions MPAA Length (min) Viewer Title Rating Rating 110 8 Mile Alone in the Dark R R 41.0 20.0 117 5 6.7 2.2 96 PG-13 PG-13 PG-13 PG-13 116.0 70.0 103 Aviator Big Fish Bourne Identity Break-Up Charlie's Angels: Full Throttle PG-13 170 7.6 66 125 119 8.0 75.0 121 7.4 52.0 116 105 106 5.8 120.0 101 100 4.8 7.7 65.0 6.5 60.0 125.0 20.0 5.0 Collateral R 120 113 Crash Daddy Day Care DaVinci Code 55 104 R 8.3 PG PG-13 92 5.7 213 34 12 149 6.5 Eternal Sunshine From Justin to Kelly Harry Potter Goblet of Fire Hostel R PG 108 81 8.6 1.9 7.8 PG-13 150.0 4.5 7.0 290 47 157 R 94 90 154 132 5.8 2.0 House of the Dead R 10 Last Samurai Million Dollar Baby Pirates of the Carribbean (II) Rollerball R PG-13 PG-13 PG-13 PG-13 100.0 111 100 7.8 8.4 30.0 225.0 322 150 7.5 70.0 80.0 19 97 2.7 S.W.A.T. 117 117 6.0 6.3 7.0 6.6 40.0 70.0 Secret Window PG-13 PG-13 48 228 96 Signs Silent Hill 106 127 R 50.0 47 Son of the Mask PG 74.0 17 94 2.0 Spider-Man 2 Star Wars II PG-13 200.0 373 127 7.8 PG-13 113.0 380 140 124 150 8.0 Sum of All Fears The Pianist The Village Van Helsing Vanilla Sky Walk the Line War of the Worlds PG-13 R 68.0 35.0 118 6.4 33 114 8.5 6.6 5.3 6.8 8.1 6.7 PG-13 72.0 108 PG-13 160.0 120 101 132 R 68.0 136 29.0 132.0 PG-13 120 234 136 116 119 PG-13 Wedding Crashers 40.0 209 7.3