document.write( "Question 318401: 3. Suppose many samples of size 49 are selected from a population with mu = 250 and sigma = 25.
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document.write( "a. What value would you expect for the mean of your samples, (mu sub x-bar) ?\r
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document.write( "b. What value would you expect for the standard deviation of the samples, (sigma sub x-bar)?\r
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document.write( "c. What distribution shape would you expect for the x-bars?\r
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Algebra.Com's Answer #227887 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose many samples of size 49 are selected from a population with mu = 250 and sigma = 25. \n" ); document.write( "a. What value would you expect for the mean of your samples, (mu sub x-bar) ? \n" ); document.write( "From the Central Limit Theorem: u(x-bar) = 250 \n" ); document.write( "--------------------------------------------------------- \n" ); document.write( "b. What value would you expect for the standard deviation of the samples, (sigma sub x-bar)? \n" ); document.write( "From the Central Limit Theorem: s(x-bar) = 25/sqrt(49) = 25/7 \n" ); document.write( "--------------------------------------------------------- \n" ); document.write( "c. What distribution shape would you expect for the x-bars? \n" ); document.write( "From the Central Limit Theorem: normal \n" ); document.write( "========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |