If a sample equal to 20% of the population size is to be drawn using equal allocation, what should be the sizes of the sample to be drawn from each stratum
If a sample equal to 20% of the population size is to be drawn using equal allocation, what should be the sizes of the sample to be drawn from each stratum
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 8E
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A market researcher plans to conduct a satisfaction survey where she selects sample units by means of stratified random sampling. She divides the population into five categories or strata with sizes 600, 200, 400, 500, and 300. If a sample equal to 20% of the population size is to be drawn using equal allocation, what should be the
A. ?1 = 90, ?2 = 60, ?3 = 90, ?4 = 90, ?5 = 70
B. ?1 = 100, ?2 = 100, ?3 = 100, ?4 = 100, ?5 = 100
C. ?1 = 100, ?2 = 40, ?3 = 80, ?4 = 120, ?5 = 60
D. ?1 = 80, ?2 = 80, ?3 = 80, ?4 = 80, ?5 = 80
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