Now you are in a position to return to the story of the two students at the beginning of this chapter. Find, for the junior, the probability that a sample of 40 from a population with µ = $73,000 and...

Now you are in a position to return to the story of the two students at the beginning of this chapter. Find, for the junior, the probability that a sample of 40 from a population with µ = $73,000 and s = $20,000 would produce a mean of $69,900 or less. Write an interpretation.