Do undergraduate business students who major in finance earn on
Do undergraduate business students who major in finance earn, on average, higher annual starting salaries than their peers who major in marketing? Before addressing this question through a statistical hypothesis test, you should determine whether the variances of annual starting salaries of the two types of majors are equal. The file P09_23.xlsx contains (hypothetical) starting salaries of 50 randomly selected finance majors and 50 randomly chosen marketing majors.
a. Perform a test for equal population variances. Report a p-value and interpret its meaning.
b. Based on your conclusion in part a, which test statistic should you use in performing a test for the existence of a difference between population means? Perform this test and interpret the results.

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