document.write( "Question 1159880: The incomes of junior executives in a large corporation are normally distributed with a standard deviation of $1,200. A cutback is pending, at which time those who earn less than $15,000 are to be discharged. If such a cut represents 10% of the junior executives, what is the current mean salary of the group of junior executives \n" ); document.write( "
Algebra.Com's Answer #782982 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 15000 is the 10th percentile of a distribution with unknown mean and sd of $1200 \n" ); document.write( "z(0.10)=(x-mean)/sd \n" ); document.write( "-1.28=(15000-x)/1200 \n" ); document.write( "-1536=15000-x \n" ); document.write( "x=$16,536 mean salary. \n" ); document.write( " |