document.write( "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. \n" ); document.write( "
Algebra.Com's Answer #671789 by Boreal(15235)\"\" \"About 
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E=z(0.975)*sd/sqrt(n)
\n" ); document.write( "=1.96*4/sqrt(125)=0.70
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