Test the claim that assistant professors earn more

Reference no: EM13124748

A researcher reports that average salary of assistant professors is more than $42000. A sample of 30 assistant professors has a mean salary o $43,260. At a probability of type 1 error of 0.05, test the claim that the assistant professors earn more than $42000 per year. the standard deviation of the population is $5230.

Reference no: EM13124748

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