document.write( "Question 580970: Hi there, PLease help :)\r
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document.write( "What would have to be the test score (rounded to once place to the right of a decimal) to qualify for admittance into a institution with a mean of normally distributed test scores of 82.5 and a standard deviation was 6.9, assuming admittance depended on being in the top 17 percent.\r
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document.write( "Thanks,
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document.write( "Fiona \n" );
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Algebra.Com's Answer #371503 by stanbon(75887) ![]() You can put this solution on YOUR website! What would have to be the test score (rounded to once place to the right of a decimal) to qualify for admittance into a institution with a mean of normally distributed test scores of 82.5 and a standard deviation was 6.9, assuming admittance depended on being in the top 17 percent. \n" ); document.write( "---- \n" ); document.write( "Find the z-score with a left tail of 0.83 \n" ); document.write( "invNorm(0.83) = 0.9542 \n" ); document.write( "---- \n" ); document.write( "That tells you the score you are looking for is 0.9542 \n" ); document.write( "standard deviations above the mean. \n" ); document.write( "---- \n" ); document.write( "Find that score: \n" ); document.write( "x = 0.9542*6.9+82.5 = 89.08 \n" ); document.write( "=============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |