Stacey is a student at a community college. She figured, being at a community college, that the majority of students probably work a job in addition to their studies. Keeping to daytime classes, Stacey considered that both gender and type of course may have an effect on the type of student and the hours he or she may work. The following data were randomly collected from three of Stacey€™s courses during the Fall 2009 semester

a. At the 0.05 level of significance, do the data provide sufficient reason to support that the type of course has an effect on the number of hours a student works?
b. At the 0.05 level of significance, do the data provide sufficient reason to support that gender has an effect on the number of hours a student works?

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Male 40 38 47 25 30 30 Female 40 25 30 42 35 28 Geography Accounting Music 15 18 30