# You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=56.7σ=56.7. You would like to be 98% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? Round up to nearest whole number.n =

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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=56.7σ=56.7. You would like to be 98% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? Round up to nearest whole number.

n =

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Step 1

Margin of error, Sample size

Given data

Standard deviation = 56.7

Confidence interval = 0.98

Significance level(α) = 1- 0....

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