document.write( "Question 687042: membership in an elite organization requires a test score in the upper 30% range. if the mean is 115 and the standard deviation is 12, find the lowest acceptable score that would enable a candidate to apply for membership. assume the variable is normally distributed. \n" ); document.write( "
Algebra.Com's Answer #424998 by stanbon(75887) ![]() You can put this solution on YOUR website! membership in an elite organization requires a test score in the upper 30% range. if the mean is 115 and the standard deviation is 12, find the lowest acceptable score that would enable a candidate to apply for membership. assume the variable is normally distributed. \n" ); document.write( "------- \n" ); document.write( "Use the form x = z*s+u \n" ); document.write( "---- \n" ); document.write( "Find the z-value with a left-tail of 0.70 \n" ); document.write( "invNorm(0.70) = 0.5244 \n" ); document.write( "---------------------------- \n" ); document.write( "x = 0.5244*12 + 115 \n" ); document.write( "x = 121.29 \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |