document.write( "Question 1200282: A sample of n = 10 scores has a mean of M = 7. One score in sample is changed from X = 21 to X = 11. What is the value of the new sample mean?\r
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Algebra.Com's Answer #834381 by ikleyn(52858) $\"\"$ $\"About$

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\n" ); document.write( "A sample of n = 10 scores has a mean of M = 7. One score in sample is changed
\n" ); document.write( "from X = 21 to X = 11. What is the value of the new sample mean?
\n" ); document.write( "The new sample mean is
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document.write( "The sum of scores of the original sample is 7*10 = 70.\r\n" );
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document.write( "After the change, the sum of scores of the updated sample is 70 - 21 + 11 = 60.\r\n" );
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document.write( "New sample mean is   = 6.    ANSWER\r\n" );
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