Solve the problem. The table shows the number of pitchers with E.R.A's below 3.5 in a random sample of sixty pitchers from the National League and in a random sample of fifty-two pitchers from the American League. Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 #p2. Find the critical value(s) for this hypothesis test. National League American League Number of pitchers in sample 60 52 Number of pitchers with E.R.A. below 3.5 12 14 O z = + 2.33 O z = + 1.645 O z = + 2.575 O z = 1 1.96