SOLUTION: Find the margin of error (E) of a confidence estimate interval, when the confidence level is 95%, the sample size is 125, and the standard deviation is 4.

SOLUTION: Find the margin of error (E) of a confidence estimate interval, when the confidence level is 95%, the sample size is 125, and the standard deviation is 4.

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Question 1056718: Find the margin of error (E) of a confidence estimate interval, when the confidence level is 95%, the sample size is 125, and the standard deviation is 4.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
E=z(0.975)*sd/sqrt(n)
=1.96*4/sqrt(125)=0.70
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