Chips per cookie" Do store brand chocolate chip cookies have fewer chips per cookie than Keebler Chips Deluxe Chocolate chip cookies? To find out, a student randomly selected 21 cookies of each brand and counted the number of chips in the cookies. The results are shown next.

KEEBLER STORE BRAND

22 23 28 21 23 24

28 28 29 24 25 27

25 20 25 26 26 21

22 21 24 18 16 24

21 24 21 21 30 17

26 28 24 23 28 31

33 20 21 27 33 29

a. Draw side by side boxplot for each brand of cookie. Does there appear to be a difference in the number of chips per cookie?

b. Does one brand have a more consistent number of chips per cookie? Why do you say that?