SOLUTION: Can you please tell me how large of a sample is required so that the margin of error = .04 with a 99% confidence interval?

Question 296923: Can you please tell me how large of a sample is required so that the margin of error = .04 with a 99% confidence interval?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Can you please tell me how large of a sample is required so that the margin of error = .04 with a 99% confidence interval?
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Margin of error depends on the z associated with the confidence level,
the standard deviation and the sample size.
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Your data leaves two variables unknown:
0.04 = 2.5758*s/sqrt(n)
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The value of "n" depends on the value of "s".
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Cheers,
Stan H.

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