1. Math
  2. Statistics And Probability
  3. problem 2 salaries for new assistant professors at state college...

Question: problem 2 salaries for new assistant professors at state college...

Question details

Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean of $50000 and a standard deviation of $5000. We randomly survey 10 teachers from that district, let X be the salary of a randomly selected teacher at State, and let X be the average salary of 10 randomly selected teachers a. (3%) x ~ Cpick one) : b. (3%) 8 ~ I(pick one): (3%) Find the probability that an individual teacher earns more than $65,000. P(X > 65000) d. (396) Find the probability that the average salary for the sample is more than $65,000. P(X > 65000) h (3%) Find the 90th percentile for the average teachers salary for samples of 10 teachers. Ir P(X < a) 0.9 then a-
Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution