Use the following information to answer question. It is believed that American League pitchers should have higher

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Use the following information to answer question. It is believed that American League pitchers should have higher earned-run averages because of the designated hitter rule. A baseball analyst collected 10 pitchers’ earned-run averages from each of the 4 divisions in the major leagues and ranked them in the following table. (A smaller rank means a smaller earned-run average.)image text in transcribedimage text in transcribed

Do a test to determine whether the American League pitchers have higher earned-run averages. Use 10 percent.

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Statistics For Business And Financial Economics

ISBN: 9781461458975

3rd Edition

Authors: Cheng Few Lee , John C Lee , Alice C Lee

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