You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p=0.7. You would like to be 97% confident that your estimate is within 1.5% of the true population proportion. How large of a sample is required?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p=0.7. You would like to be 97% confident that your estimate is within 1.5% of the true population proportion. How large of a sample is required?

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