For Exercises 8 through 25, assume that the sample is
Chapter 6, Problem 16(choose chapter or problem)
For Exercises 8 through 25, assume that the sample is taken from a large population and the correction factor can be ignored.Worker Ages The average age of chemical engineers is 37 years with a standard deviation of 4 years. If an engineering firm employs 25 chemical engineers, find the probability that the average age of the group is greater than 38.2 years old. If this is the case, would it be safe to assume that the engineers in this group are generally much older than average?
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