According to FedSmith. com, the average salary for a federal employee in 2012 was $ 74,804. Assume
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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.
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