A student wanted to know whether Centrum vitamins dissolve faster than the corresponding generic brand. The student used vinegar as a proxy for stomach acid and measured the time (in minutes) it took for a vitamin to completely dissolve. The results are shown next.

(a) Draw side-by-side boxplots for each vitamin type.
(b) Which vitamin type has more dispersion?
(c) Which vitamin type appears to dissolve faster?

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Centrum Generic Brand 2.73 3.07 3.30 3.35 3.12 6.57 6.23 6.17 7.17 5.77 2.95 2.15 2.67 2.80 2.25 6.73 5.78 5.38 5.25 5.55 2.60 2.57 4.02 3.02 2.155.50 6.50 7.42 6.47 6.30 3.03 3.53 2.63 2.30 2.73 6.33 7.42 5.57 6.35 5.92 3.92 2.38 3.25 4.00 3.63 5.35 7.25 7.58 6.50 4.97 3.02 4.17 4.33 3.85 2.23 7.13 5.98 6.60 5.03 7.18