A) z = 0.754 Solve the problem. 4) 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...

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Extracted text: A) z = 0.754 Solve the problem. 4) 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. A ssume that you plan to use a significancelevel of a = 0.05 to test the claim that p1 p2. Find the critical value(s) for this hypothesis test. Do the data support the claim that the proportion of National League pitchers with an E.R.A. below 3.5 differsfrom the proportion of American League pitchers with an E.R.A. below 3.5? 4) National League American League Number of pitchersin sample Number of pitchers with E.R.A. below 3.5 60 52 16 10 A) z = 1.645; yes B) z = + 1.645; yes C) z = + 1.96; no D) z = + 2.575; no Datermine wbether the samples areindependent or dependent.