document.write( "Question 872381: 15. A population has a mean μ = 90 and a standard deviation σ = 27. Find the mean and standard deviation of a sampling distribution of sample means with sample means with sample size n=81 \n" ); document.write( "
Algebra.Com's Answer #526109 by stanbon(75887)\"\" \"About 
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A population has a mean μ = 90 and a standard deviation σ = 27. Find the mean and standard deviation of a sampling distribution of sample means with sample means with sample size n=81
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\n" ); document.write( "Central Limit Theorem says::
\n" ); document.write( "mean of the sample means = mean of the population
\n" ); document.write( "std of the sample means = (std of population)/sqrt(sample size)
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\n" ); document.write( "Ans:
\n" ); document.write( "mean of sample means = 90
\n" ); document.write( "std of sample means = 27/sqrt(81) = 27/9 = 3
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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