Chapter 4.1, Problem 40E

To determine

To select a response for the multiple choice question given.

Answer to Problem 40E

The option (c) is correct.

Explanation of Solution

A simple random sample of $1200$ adult American is selected and each person is asked the following question about the mars. In this context, the option (c) is correct because by giving the respondent additional information that may sway their answer, the question creates bias responses and will most likely lead to an underestimation. Thus, this survey probably understates the percent of people who favour sending humans to Mars.