According to a recent national survey, the mean number of hours that adult Americans watch Netflix each week is 16.38 hours with a standard deviation of 8.51 hours. If a random sample of 36 adult Americans is selected, what is the probability that their mean number of hours watching Netflix each week is less than 18 hours. Problem Type: The normal distribution that needs to be used to help solve the problem has mean and standard deviation as follows:
Mean: 16.38
Standard Deviation: 1.418
Probability:
