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Question: A service agency wishes to assess its clients' views on quality of service over the past year. Computer records identify 1000 clients over the past 12 months, and a decision is made to select 100 clients to survey.

(a) Describe a procedure for selecting a simple random sample of 100 clients from last year's population of 1000 clients.

(b) The population of 1000 clients consists of 800 Caucasian-Americans, 150 African-Americans and 50 Hispanic-Americans. Describe an alternative procedure for selecting a representative random sample of size 100 from the population of 1000 clients.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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