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A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000. A random sample of 50

A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000. A random sample of 50 lawyers selected from the city reveals a mean annual salary of $116500. Assume that = $16700, and that the test is to be made at the 1% significance level.

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