document.write( "Question 74935: The govenment is in the process of formulating a poverty reductiong policy and wants an estimate of the proportion of the population living below the poverty line . It wants the estimate to be within 4 % of the true population . assuming a 97.14 % confidense level . determine the appropriate sample size to use for the study . \n" ); document.write( "
Algebra.Com's Answer #54323 by stanbon(75887)\"\" \"About 
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The govenment is in the process of formulating a poverty reductiong policy and wants an estimate of the proportion of the population living below the poverty line . It wants the estimate to be within 4 % of the true population . assuming a 97.14 % confidense level . determine the appropriate sample size to use for the study .
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\n" ); document.write( "E=z*sqrt(pq/n)
\n" ); document.write( "Interchange E and sqrt(n) to get:
\n" ); document.write( "sqrt(n)=[z*sqrt(pq)]/E
\n" ); document.write( "z* for 97.14% confidence = 2.1889565
\n" ); document.write( "Since p is not given use p=0.5=q
\n" ); document.write( "E=0.04
\n" ); document.write( "Substitute to get:
\n" ); document.write( "sqrt(n) = [2.1889565*sqrt(0.5^2)]/0.04
\n" ); document.write( "sqrt(n) = 27.36
\n" ); document.write( "n=748 when rounded to a whole number
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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