Question: Sports and Leisure The National Football League rates each quarterback after every game according to a formula that involves pass attempts, passing yards, touchdown passes, and interceptions. Suppose the mean quarterback rating per game is 52.1 with σ = 16.7. There is some speculation that rule changes benefiting receivers have also increased quarterback ratings. In a random sample of 34 quarterback 2012 season ratings, the sample mean was x¯ = 57.09. 31 Is there any evidence to suggest that the true mean quarterback rating has increased? Use a = 0.05 and compute the p value.