document.write( "Question 481060: A certain population has a mean of 500 and a standard deviation of 30. Many samples of size 36 are randomly selected and the means are calculated.\r
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document.write( "What value would you expect to find for the mean of all these samples means? (round to the nearest integer)\r
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document.write( "What value would you expect to find for the standard deviation of all these sample means? (round to the nearest integer)\r
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document.write( "True of False, you would expect the shape of the sampling distribution to be approximately normal \n" );
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Algebra.Com's Answer #329424 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A certain population has a mean of 500 and a standard deviation of 30. \n" ); document.write( "Many samples of size 36 are randomly selected and the means are calculated. \n" ); document.write( "What value would you expect to find for the mean of all these samples means? \n" ); document.write( "Ans: The mean of the sample means = the mean of the population \n" ); document.write( "Ans: 500 \n" ); document.write( "---------------------------\r \n" ); document.write( "\n" ); document.write( "What value would you expect to find for the standard deviation of all these sample means? \n" ); document.write( "Ans: 30/sqrt(36) = 30/6 = 5 \n" ); document.write( "----------------------------------- \n" ); document.write( " \n" ); document.write( "True of False, you would expect the shape of the sampling distribution to be approximately normal \n" ); document.write( "True. \n" ); document.write( "--- \n" ); document.write( "All of these answers are provided by the Central Limit Theorem. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |