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 June 25, 2018, 3:07 pm ad1c9bdddf
The solution is comprised of detailed solution on calculating the probability of a normal distribution.