You want to obtain a sample to estimate a population mean


You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=41.9σ=41.9. You would like to be 95% confident that your esimate is within 0.2 of the true population mean. How large of a sample size is required?

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Business Management: You want to obtain a sample to estimate a population mean
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