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 4 hours.
a. Determine the probability the sample mean will be within 1 hour of the population mean.
b. Determine the probability the sample mean will be within 45 minutes of the population mean.© BrainMass Inc. brainmass.com September 21, 2018, 3:30 pm ad1c9bdddf - https://brainmass.com/statistics/normal-distribution/probability-of-normal-distribution-78512
The solution is comprised of detailed solution on calculating the probability of a normal distribution.