Discuss the below problems:
FACTS:
The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours.
Q(a)What is the probability that a randomly selected North American adult watches television for more than 7 hours per day?
(b) What is the probability that the average time watching television by a random sample of five North American adults is more than 7 hours?
(c) What is the probability that in a random sample of five North American adults, all watch television for more than 7 hours per day?