Chapter 4.1, Problem 39E

To determine

To select a response for the multiple choice question given.

Answer to Problem 39E

The option (d) is correct.

Explanation of Solution

A local news agency conducted a survey about unemployment by randomly dialing phone numbers during the work day until it gathered responses from $1000$ adults in its state. Thus in this the option (d) is correct option because most workers don't want to answer their phone. Some employees are busy working and are unable to answer the phone which can make it an nonresponse bias. Thus, the option (d) is correct i.e. the difference is due to non-response bias. Adults who are employed are less likely to be available for the sample than adults who are unemployed.