document.write( "Question 955656: If X has a normal distribution with mean 80 and standard deviation 12, what is the distribution of the mean of a sample of 9 of these values? Give the values of the parameters.
\n" ); document.write( " Please help me with this - and can you please explain what they mean by the value of the parameters. Thank you to whomever tackles this problem. I do appreciate the time and effort each of you put in helping others - it takes a special person to do so.\r
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Algebra.Com's Answer #583841 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
If X has a normal distribution with mean 80 and standard deviation 12, what is the distribution of the mean of a sample of 9 of these values? Give the values of the parameters.
\n" ); document.write( "Please help me with this - and can you please explain what they mean by the value of the parameters. Thank you to whomever tackles this problem. I do appreciate the time and effort each of you put in helping others - it takes a special person to do so.
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\n" ); document.write( "The parameters of a distribution are the mean and the standard
\n" ); document.write( "deviation of the distribution.
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\n" ); document.write( "Your Problem as answered by the Central Limit Theorem.
\n" ); document.write( "Mean of sample means = mean of population = 80
\n" ); document.write( "std of sample mean = (std of population)/sqrt(sample size) = 12/3 = 4
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\n" ); document.write( "Those are the parameters of the distribution.
\n" ); document.write( "Cheers,
\n" ); document.write( "stan H.
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