A simple random sample of 1,110 adult Americans is selected, and each person is

Question

A simple random sample of 1,110 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 establish a national system of health insurance?

Only 39% of respondents answered yes. Which of the following is an appropriate conclusion about the results of this summary?

A. They probably understate the percentage of people who favor a system of national health insurance because of the question’s wording.

B. They are inaccurate because of convenience sampling.

C. They probably overstate the percentage of people who favor a system of national health insurance because of the question’s wording.

D. They are reasonably accurate because the study used a large simple random sample.

E. They are inaccurate because of voluntary response.

Explanation / Answer

The correct option is:

C. They probably overstate the percentage of people who favor a system of national health insurance because of the question’s wording.

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