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A random sample of 16 size AA batteries for toys yield a sample mean of 2.72...

A random sample of 16 size AA batteries for toys yield a sample mean of 2.72 hours with sample standard deviation 0.92 hours. Find a 99% confidence interval for the mean hours of all AA batteries.

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Answer #1

The 99% Confidence interval for the mean hours of all AA batteris is between 2.042 and 3.398

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