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In a sleeping laboratory, 16 volunteers sleep an average of 7.2 hours, with a standard deviation of...

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Statistics

Ina sleeping laboratory, 16 volunteers sleep an average of 7.2 hours,with a standard deviation of 1.2 hours. What would be a 90%confidence interval estimate for the mean number of hours thatpeople sleep at the night?

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SolutionGiven that 72 Sample means 12 Sample standard deviationn 16 Sample    See Answer
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