According to the Nielson Company, the population mean number of hours of TV viewing per household, per week, in the U.S. is 50.4 with a standard devaition of 11.8 hours. A random sample of 42 U.S. households is taken for a study.
What is the probability that the mean of the sample of 42 is more than 52 hours?
What is the probability that a randomly selected household in the population watches more than 52 hours of TV in a week?