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Estimating the population proportion within an error

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Reference no: EM131689457

Question: 1. If you want to be 99% confident of estimating the population proportion to within an error of ±0.04, what sample size is needed?

2. If you want to be 95% confident of estimating the population proportion to within an error of ±0.02 and there is historical evidence that the population proportion is approximately ±0.40, what sample size is needed?

Reference no: EM131689457

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