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A manager wishes to estimate a population mean using a 95​% confidence interval estimate that has...

A manager wishes to estimate a population mean using a 95​% confidence interval estimate that has a margin of error of

±44.0 If the population standard deviation is thought to be 610​, what is the required sample​ size?

Math   Statistics-And-Probability   
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Answer #1

For the 95% confidence interval, the margin of error is ±44.0 and the population SD(s) is 610

Let the sample size be n

By the problem,

The required sample size is 738

Hopefully this will help you. In case of any query, do comment. If you are satisfied with the answer, give it a like. Thanks.

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