document.write( "Question 956428: The SAT has a mean of 450 and a standard deviation of 70. The ACT has a mean of 19 and a standard deviation of 5. Suppose that you score 550 on the SAT and 22 on the ACT. on which test did you have a better score. \n" ); document.write( "
Algebra.Com's Answer #584300 by stanbon(75887)\"\" \"About 
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The SAT has a mean of 450 and a standard deviation of 70.
\n" ); document.write( "z(550) = (550-450)/70 = 100/70 = 1.4286
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\n" ); document.write( "\n" ); document.write( "The ACT has a mean of 19 and a standard deviation of 5.
\n" ); document.write( "a(22) = (22-19)/5 = 2/5 = 0.4
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\n" ); document.write( " Suppose that you score 550 on the SAT and 22 on the ACT. on which test did you have a better score.
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\n" ); document.write( "Ans: The SAT score was 1.4 standard deviations above the mean.
\n" ); document.write( "The ACT score was only 0.4 standard deviations above the mean.
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\n" ); document.write( "SAT score was better.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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