SOLUTION: Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $29,000 and a standard deviation of $5455. What is the cutoff sa

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Question 1149949: Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $29,000 and a standard deviation of $5455. What is the cutoff salary for teachers in the bottom 10%?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
the z value for the 10th percentile is -1.28
z=(x-mean)/sd
-1.28=(x-29000)/5455
x-29000=-6982.40
x=$22,017.60