The September 21, 2006, USA Today article “Average home has more TVs than people” stated that Americans watch an average of 4.58 hours of television per person per day. Source: Nielsen Media Research If the standard deviation for the number of hours of television watched per day is 2.1 and a random sample of 250 Americans 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?