Salaries of newly hired workers at a major company are normally distributed with a mean of $59,000 and a standard deviation of $7,000. A recent survey from a random sample of 40 newly hired workers shows a mean salary of $57,500 during the past recession. At the 1% level of significance, what is your assessment?

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Guest

17 November, 08:21

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Jake Hull · Answer 1

Add everything and then divide by 40 and that will get your answer.