document.write( "Question 841820: Scores on a management aptitude examination are normally distributed with a mean of 72 and a standard deviation of 8. \r
\n" ); document.write( "\n" ); document.write( "a. What is the lowest score that will place a manager in the top 1% (99th percentile) of the distribution? Your answer is Please round to an integer number. \r
\n" ); document.write( "\n" ); document.write( "b. What is the highest score that will place a manager in the bottom 20% (20th percentile) of the distribution? Your answer is Please round to an integer number. \n" ); document.write( "

Algebra.Com's Answer #507217 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Using TI:
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document.write( "*Note: 
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document.write( "z = invNorm(area to left of desired z).
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document.write( "a)z =  invNorm(.99) = 2.326
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document.write( "  2.362 = (x-72)/8
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document.write( " 8(2.326) + 72 = x = 91
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document.write( "b)z = invNorm(.20) = -.842
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document.write( "   8(-.842) + 72 = x = 65
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