document.write( "Question 1182765: In a recent poll, 340 people were asked if they liked dogs, and 27% said they did.
\n" ); document.write( "Find the Margin of Error for this poll, at the 95% confidence level.
\n" ); document.write( "Answer to 4 decimal places if possible.\r
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Algebra.Com's Answer #812857 by Boreal(15235) $\"\"$ $\"About$

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half-interval or margin of error is z(0.975)*sqrt(p*(1-p)/n)
\n" ); document.write( "=1.96*sqrt(0.27*0.73/340)
\n" ); document.write( "=1.96*0.0241=0.0472
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