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The Telephone Company Wants to Survey Its 100,000 Customers

Question 19

Multiple Choice

The telephone company wants to survey its 100,000 customers. Four proposals for sampling the customers are being considered. Which would you recommend?


A) interview every 75th person listed in the telephone directory
B) mail a questionnaire to all 100,000 customers and assume at least 1200 will respond
C) interview the people in every 50th residence from a postal listing of all addresses
D) interview those 1000 persons with the highest phone bills

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