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3.A company produces batteries which are intended for use in the Johnny Creampuff action figure. A simple random sample of 16 of these batteries yields

3.A company produces batteries which are intended for use in the Johnny Creampuff action figure. A simple random sample of 16 of these batteries yields a mean life of 41.89 hours and standard deviation of 4.75 hours. Find the 99% confidence interval for the mean life of all batteries used in Johnny Creampuff toys. Assume the population is normally distributed. Be sure to interpret your answer.

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