Answered: You want to obtain a sample to estimate…

Name: You want to obtain a sample to estimate a population proportion. Based
Uploaded: 2024-03-20T07:07:00.000Z
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Description: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 32%. You would like to be 95% confident that your estimate is within 4.5% of the true population propo

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 48WE

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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 32%. You would like to be 95% confident that your estimate is within 4.5% of the true population proportion. How large of sample size is required?

n =

Expert Solution

Step 1

It is given that the population proportion is 0.32.

It is known that the critical value for 95% confidence level is 1.96.

The margin of error (E), is 0.045.

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