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A Business professor is interested in determining whether or not recent NMU graduates make more than the general population in Michigan for their entry level yearly income. According to the last US Census the mean entry level yearly income in Michigan is $32,949 (standard deviation = $500). Using a sample of 40 NMU graduates who graduated one year ago, the researcher found that the mean yearly income for the recent NMU graduates was $34,800 (standard deviation = $450).

(a) Would you use a descriptive or inferential procedure? Why?

(b) How many samples are there? Are the samples independent or dependent? Why?

(c) Is the dependent variable qualitative or quantitative

(d) What statistical procedure should be used? Why?