An opinion poll calls 2143 randomly selected residential telephonenumbers, then ask to speak with adult member of the household. The interviewer asks, "How many movies have you watched in the movietheater in the past 12 months?"
a) What population do you think the poll has in mind?
b) In all, 1116 people respond. Determine the rate (percent) of nonresponse?
c) What source of response error is likely for the question asked?