Question 74642This question is from textbook Elementary Statistics
: Assume that the salaries of elemetary school teachers in the United States are
normally distributed with a mean of $32,000 and a standard deviation of $ 3000.
If a teacher is selected at random, find the probability that he or she makes more than $36,000.
This question is from textbook Elementary Statistics
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Assume that the salaries of elemetary school teachers in the United States are
normally distributed with a mean of $32,000 and a standard deviation of $ 3000.
If a teacher is selected at random, find the probability that he or she makes more than $36,000.
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Find the z-score of 36000
z(36000)= (36000-32000)/3000= 4000/3000= 4/3 = 1.333
P(X>36000)= P(z>1.333)= 0.09126....
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Chers,
Stan H.
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