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John is a buyer of large supplies of light bulbs. He wants to test at a 5% level of significance the manufacturers claim that his
John is a buyer of large supplies of light bulbs. He wants to test at a 5% level of significance the manufacturers claim that his bulbs last more than 800 hrs. He tests 36 bulbs and find the sample mean = 816 hrs and the sample standard deviation s = 70 hrs. What is the acceptance region? O 1.82 O 1.64 O 2.43 O 1.72
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