[Steps Shown] For a random sample of 1200 tires of Brand A, 30 experienced tire failure problems. For a random sample of 800 tires of Brand B, 15 experienced
Question: 7. For a random sample of 1200 tires of Brand A, 30 experienced tire failure
problems. For a random sample of 800 tires of Brand B, 15 experienced that type of tire failure. Can we conclude at the .05 level that there is a difference between the two brands?
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[Solution] Twelve Students who took final test in a statistics
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