PA The city manager of Shinbone has received a complaint from the local union of fi refi

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PA The city manager of Shinbone has received a complaint from the local union of fi refi ghters to the effect that they are underpaid. Not having much time, the city manager gathers the rec ords of a random sample of 27 fi refi ghters and fi nds that their average salary is $38,073 with a standard deviation of $575. If she knows that the average salary nationally is $38,202, how can she respond to the complaint? Should she use a one-tailed test in this situation? Why? What would she say in a memo to the union that would respond to the complaint?

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