In a study of sleep quality and academic performance, the total sleep duration among college students was approximately Normally distributed with mean Using the standard deviation of 0.083 needed such that approximately 95% of all samples have a mean within 10 minutes of u, determine the number of students you need u = 7.13 hoursand standard deviation o = 1.67 hours. You to sample. want to use a sample size such that about 95% of the Report your answer as a whole number. averages fall within +10 minutes (0.17 hour) of the true mean u = 7.13.

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