According to Nielsen’s Television Audience Report, in 2009 the average American home had 2.86 television sets (more than the average number of people per household, at 2.5 people). If the standard deviation for the number of televisions in a U.S. household is 1.2 and a random sample of 80 American households is selected, the mean of this sample belongs to a sampling distribution.
a. What is the shape of this sampling distribution?
b. What is the mean of this sampling distribution?
c. What is the standard deviation of this sampling distribution?