Question: One-year sales volume of four similar 20-oz. beverages on a college campus is shown. (a) Make a bar chart and describe it. (b) Calculate expected frequencies for each class. (c) Perform the chisquare test for a uniform distribution. At α = .05, does this sample contradict the assumption that sales are the same for each beverage?

Beverage Sales (Cases)

Frappuccino Coffee 18

Frappuccino Mocha 23

Frappuccino Vanilla 23

Frappuccino Caramel 20

Total 84