Question: Sheila Jones works for an established marketing research company in

Sheila Jones works for an established marketing research company in Cincinnati, Ohio. Her supervisor just handed her a list of 500 four-digit random numbers extracted from a statistical table of random digits. He told Sheila to conduct a survey by calling 500 Cincinnati residents on the telephone, provided the last four digits of the phone number matched one of the numbers on the list. If Sheila follows her supervisor’s instructions, is he assured of obtaining a random sample of respondents? Explain.



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  • CreatedAugust 27, 2015
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