# Question

According to FedSmith. com, the average salary for a federal employee in 2012 was \$ 74,804. Assume the population standard deviation is \$ 15,300. A random sample of 34 federal employees is selected.
a. What is the probability that the sample mean will be less than \$ 70,000?
b. What is the probability that the sample mean will be more than \$ 74,000?
c. What is the probability that the sample mean will be between \$ 76,000 and \$ 81,000.

Sales0
Views24