A Survey of Randomly Selected College Students Found That 45

Multiple Choice

A survey of randomly selected college students found that 45 of the 99 freshmen and 57 of the 100 sophomores surveyed had purchased used textbooks in the past year.Construct a 98% confidence interval for the difference in the proportions of college freshmen and sophomores who purchased used textbooks.

A) (0.317, 0.593)
B) (0.291, 0.593)
C) (-0.279, 0.049)
D) (0.291, 0.619)
E) (-0.253, 0.593)