The amounts (in millions of dollars) grossed by movies in categories with PG, PG-13, and R ratings, we obtain the analysis of variance results from statistical software below. Use a 0.05 significance level to test the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount. Amount Grosses By Movies Sum of df Squares Mean Squares F Sig Between Groups 84801.867 2 42400.933 5.313 .010 Within Groups 255396.1 32 32 7981.129 Total 340198.0 34 34 O We cannot come to any conclusions because the F distribution in this case is skewed to the right. There is not sufficient evidence to warrant rejection of the claim that PG movies, PG- 13 movies, and R movies have the same mean gross amount.