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Q4.Employees in a large accounting firm claim that the mean salary of the firm's accountants is the same as that of its competitor's, which is

Q4.Employees in a large accounting firm claim that the mean salary of the firm's accountants is the same as that of its competitor's, which is $45,000. A random sample of 30 of the firm's accountants has a mean salary of $43,000 with a standard deviation of $5200. At = 0.05, test the employees' claim.

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