(Answered) The average age of a part-time employee at a ski resort has

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The average age of a part-time employee at a ski resort has historically been 37 years. A random sample of 50 part-time employees in 2011 had a sample mean age of 38.5 years with a sample standard deviation of 16 years. At 10 percent level of significance, does the sample show that the average age was different in 2011? (use rejection region method) SHOW ALL WORK

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