A survey of 40 students at a local college asks, "Where do you buy the majority of your books?" The responses fell into three categories: "at the campus bookstore," "on the Internet," and "other." The results follow. Construct a 95% confidence interval for the proportion of all of the

college students

bookstore other bookstore other other bookstore

who buy their books on the Internet. Where Most Books Bought

bookstore bookstore bookstore other other internet

internet bookstore bookstore other internet internet

other bookstore internet other other other

internet bookstore internet other bookstore bookstore

other bookstore other internet bookstore

bookstore other other bookstore other