Question 78632This question is from textbook Elementary Statistics
: Assume that the salaries of elementary school teachers in the United States are normally distribured with a mean of $32,000 and a standard deviation of $3,000. 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 elementary school teachers in the United States are normally distribured with a mean of $32,000 and a standard deviation of $3,000. If a teacher is selected at random, find the probability that he or she makes more than $36,000.
--------------------
Find the z-score of 36000
z(26000)=(36000-32000)/3000=1.3333...
P(x>36000)=P(z>1.333)=0.0913
===============
Cheers,
Stan H.
|
|
|
