Assume the population standard deviation for weekly

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The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assume the population standard deviation for weekly viewing time is σ?=4 hours (a)What is the probability the sample mean will be within 1 hour of the population mean? (b) What is the probability the sample mean will be within 45 minutes of the population mean?

Reference no: EM131160404

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