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Multiple Section 13. A sample of 10 battery are randomly selected with lifetime mean 247 hours and standard deviation 6 hours Assume you want test

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Multiple

Section 13. A sample of 10 battery are randomly selected with lifetime mean 247 hours and standard deviation 6 hours Assume you want test the following hypothesis at 0.01 significance level : HO: >250 H (1: H =250 What is the calculated value and your decision? (3 Points) t= -1.05 fail to reject HO t= -3.89 reject HO t=2.29 reject HO O t= -1.58 fail to reject HO None of Above

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