A cable company is trying to decide which movie channel to offer as a promotion for customers who have subscribed to their service
for 5 years or more. The company decides to include a survey question at the bottom of the monthly statement of each customer who
meets the requirement. The customer can check off their channel choice. Are the results of the survey reliable? Why or why not?
A)
The results are not reliable because mail can get lost.
The results are not reliable because people are in a bad mood when they
receive a monthly statement.
Eliminate
The results are not reliable because other customers will reach the 5 year
goal before the end of the year.
The results are reliable because all of the qualifying customers will
receive a statement and be able to participate in the survey.