A cosmetics manufacturer was interested in comparing male college students and male non-students in terms of their usage of hair gel. Random samples of 100 male students and 100 male non-students were drawn in a Midwestern college town. Each was asked whether he used hair gel in the past month. 30 students and 25 nonstudents said that they used hair gel within this period. Does this evidence indicate that there is a difference in hair gel use between male students and male non-students? State the null and alternate hypotheses, and show your calculations.