SOLUTION: Determine a minimum required sample size if you want to be 95% confident that the sample mean is within one unit of population mean given that population standard deviation is = 4.

Question 458630: Determine a minimum required sample size if you want to be 95% confident that the sample mean is within one unit of population mean given that population standard deviation is = 4.8.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Determine a minimum required sample size if you want to be 95% confident that the sample mean is within one unit of population mean given that population standard deviation is = 4.8.
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n = [zs/E]^2
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n = [1.96*4.8/1]^2 = 88.5 = 89 when rounded up
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Cheers,
Stan H.
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