SOLUTION: According to a recent survey, the salaries of assistant professors have a mean of 41,750 and a standard deviation of 7,000. Assuming that the salaries of assistant professors follo

Algebra ->  Probability-and-statistics -> SOLUTION: According to a recent survey, the salaries of assistant professors have a mean of 41,750 and a standard deviation of 7,000. Assuming that the salaries of assistant professors follo      Log On


   

Question 1159107: According to a recent survey, the salaries of assistant professors have a mean of 41,750 and a standard deviation of 7,000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors who earn more than 48,000 . Round your answer to at least four decimal places.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=(x-mean)/sd
=(48000-41750)/7000
=6250/7000
=+0.89
probability of z>0.89 is 0.1860