SOLUTION: What sample size is needed to give a margin of error of 5% with a 95% confidence interval? Sample size =

SOLUTION: What sample size is needed to give a margin of error of 5% with a 95% confidence interval? Sample size =

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Question 1026085: What sample size is needed to give a margin of error of 5% with a 95% confidence interval?
Sample size =
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
What sample size is needed to give a margin of error of 5% with a 95% confidence interval?

Sample size = n = [1.96/0.05]^2*(1/2)^2 = 385 when rounded up.
Cheers,
Stan H.
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