document.write( "Question 385047: Given a level of confidence of 95% and a population standard deviation of 9, answer:\r
\n" ); document.write( "\n" ); document.write( "A). What other information is necessary to find the sample size of (n)?
\n" ); document.write( "B). Find the Maximum Error of Estimate (E) if n = 56. Show all calculations.\r
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\n" ); document.write( "\n" ); document.write( "**I did not do that well on a test. Can someone please help me to understand this?
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Algebra.Com's Answer #272492 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Given a level of confidence of 95% and a population standard deviation of 9, answer:
\n" ); document.write( "A). What other information is necessary to find the sample size of (n)?
\n" ); document.write( "---
\n" ); document.write( "n = [z*s/E]^2
\n" ); document.write( "Need \"E\", which is the allowed error.
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\n" ); document.write( "B). Find the Maximum Error of Estimate (E) if n = 56. Show all calculations
\n" ); document.write( "---
\n" ); document.write( "Error = z*s/sqrt(n)
\n" ); document.write( "---
\n" ); document.write( "E = 1.96*9/sqrt(56)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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