document.write( "Question 1037709: To be the top 3% of the
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document.write( "class, what score do
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document.write( "you need if the mean must be 70% and standard
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document.write( "deviation to be 7% \n" );
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Algebra.Com's Answer #652334 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! To be the top 3% of the \n" ); document.write( "class, what score do \n" ); document.write( "you need if the mean must be 70% and standard \n" ); document.write( "deviation to be 7% \n" ); document.write( "----- \n" ); document.write( "Find the z-value with a left-tail of 0.97 \n" ); document.write( "invNorm(0.97) = 1.8808 \n" ); document.write( "---- \n" ); document.write( "x = z*s + p \n" ); document.write( "x = 1.8808*0.07 + 0.78 \n" ); document.write( "x = 0.9117 = 91.17% \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------- \n" ); document.write( " |