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5. The state of California plans to match bank statements with CalWorks recipients to estimate the proportion of CalWorks recipients who have accounts with more than $40,000. Another state did a similar study and found that 182 of 900 recipients had bank accounts with more than $40,000. How large a sample is needed to ensure the margin of error is not more than 5%, with a 90% confidence interval?

5. The state of California plans to match bank statements with CalWorks recipients to estimate the proportion of CalWorks recipients who have accounts with more than $40,000. Another state did a similar study and found that 182 of 900 recipients had bank accounts with more than $40,000. How large a sample is needed to ensure the margin of error is not more than 5%, with a 90% confidence interval?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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5. The state of California plans to match bank statements with CalWorks recipients to estimate the proportion of CalWorks recipients who have accounts with more than $40,000. Another state did a similar study and found that 182 of 900 recipients had bank accounts with more than $40,000. How large a sample is needed to ensure the margin of error is not more than 5%, with a 90% confidence interval?
Transcribed Image Text:5. The state of California plans to match bank statements with CalWorks recipients to estimate the proportion of CalWorks recipients who have accounts with more than $40,000. Another state did a similar study and found that 182 of 900 recipients had bank accounts with more than $40,000. How large a sample is needed to ensure the margin of error is not more than 5%, with a 90% confidence interval?
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