The mean television viewing time for americans is 15 hours, Ask an Expert

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The mean television viewing time for Americans is 15 hours per week. Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assuming the population standard deviation for weekly viewing time is o=4 hours.

a. What is the probability that the sample mean will be within 1 hour of the population mean.
b. What is the probability that the sample mean will be within 45 minutes of the population mean?

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Category:- Statistics and Probability
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