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(8.01) A political scientist wants to know how college students feel about the Social Security system....

(8.01) A political scientist wants to know how college students feel about the Social Security system. She obtains a list of the 3458 undergraduates at her college and mails a questionnaire to 279 students selected at random. Only 106 questionnaires are returned. What is the size of the sample?

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Answer #1

The size of the sample = 106

EXPLANATION:

The sample is the 106 questionnaires that are returned because the characteristics of the sample such   as sample mean , sample standard deviation etc. can be calculated based on the 106 questionnaire that are returned only.

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