Question

The survey has bias.​ (a) Determine the type of bias.​ (b) Suggest a remedy. An anti dash drunk driving advocate wants to estimate the percentage of people who favor increasing the penalty for drunk driving. She conducts a nationwide survey of 1870 randomly selected adults 18 years and older. The interviewer asks the​ respondents, ​"Do you favor harsher penalties for those convicted for drunk driving question mark ​"

Answer 1

Answer: A.  Under coverage bias

B. Including the remaining population in the survey

Explanation: A. In simple words, Under coverage bias refers to the bias when the sample population does not depicts clear picture due to inadequate selection.

In the given case, the advocate included only adults in the survey however the problem she was surveying about is also related to minors. Hence her sample size is not adequate leading to under coverage bias.

B. Advocate could solve this problem easily by including the minors in the survey and considering the view point as well.