Use the Following to Answer the Questions Below:
an Internet $\mu$

Multiple Choice

Use the following to answer the questions below:
An Internet provider contacts a random sample of 300 customers and asks how many hours per week the customers use the Internet. It found the average amount of time spent on the Internet per week to be about 7.2 hours.
-Define the parameter of interest, using the proper notation.

A) $\mu$ = mean number of hours per week all customers use the Internet
B) = 7.2 hours
C) = mean number of hours per week all customers use the Internet
D) $\mu$ = 7.2 hours