document.write( "Question 367350: You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get? \n" ); document.write( "
Algebra.Com's Answer #261853 by stanbon(75887)\"\" \"About 
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You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get?
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\n" ); document.write( "n = [zs/E]^2
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\n" ); document.write( "n = [2.5758*s/2]^2 where \"s\" is the standard deviation of the distribution.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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