document.write( "Question 355232: A SET OF SCORES WITH A MEAN OF 16 AND A STANDARD DEVIATION OF 3. WHAT SCORE SEPARATES THE TOP 30 PERCENT OF THE POPULATION FROM THE LOWER 70 PERCENT? \n" ); document.write( "

Algebra.Com's Answer #253775 by Fombitz(32388) $\"\"$ $\"About$

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Find the z-score that give $\"P%28z%29=0.7\"$ .
\n" ); document.write( "Using EXCEL's NORMSINV function, $\"z=0.524401%7D%7D%0D%0A.%0D%0A.%0D%0A.%0D%0A%7B%7B%7B%28x-mu%29%2Fsigma=0.524401\"$
\n" ); document.write( " $\"%28x-16%29%2F3=0.524401\"$
\n" ); document.write( " $\"x-16=1.573\"$
\n" ); document.write( " $\"highlight%28x=17.573%29\"$ \n" ); document.write( "

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