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Chapter 4: Q. 40 (page 240)

A simple random sample of 1200 adult Americans is selected, and each person is asked

the following question: “In light of the huge national deficit, should the government at this

time spend additional money to send humans to Mars?” Only 39% of those responding

answered “Yes.” This survey

a. is reasonably accurate because it used a large simple random sample.

b. needs to be larger because only about 24 people were drawn from each state.

c. probably understates the percent of people who favor sending humans to Mars.

d. is very inaccurate but neither understates nor overstates the percent of people who favor

sending humans to Mars. Because simple random sampling was used, it is unbiased.

e. probably overstates the percent of people who favor sending humans to Mars.

Short Answer

Expert verified

The correct option is c. because it probably understates the percent of people who favor sending humans to Mars.

Step by step solution

01

Given information

We need to choose the correct option from the given options.

02

Explanation

The question introduces bias responses by providing additional information that may impact the respondent's answer, which will most certainly lead to an underestimating, therefore we may conclude it understates the percentage of individuals who favour sending humans to Mars.

So the correct option is c.

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