Select True or False from each pull-down menu, depending on whether the corresponding statement is true or false.

 1. While taking a census is more expensive than taking a sample, taking a census might help eliminate the problem of sampling error.

 2. When the respondents to a questionnaire have different characteristics from those who did not choose to participate in the survey, the survey will likely suffer from response error.

 3. A simple random sample involves dividing the population into groups, then randomly selecting some of the groups and taking a simple random sample of their members.

 4. A nonsampling error may be caused by the wording of a questionnaire.

In order to get credit for this problem all answers must be correct.