Dissolving Rates of Vitamins A student wanted to know whether Centrum vitamins dissolve

Chapter 3, Problem 15

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Dissolving Rates of Vitamins 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. 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 2.15 5.50 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 Source: Amanda A. Sindewald, student at Joliet Junior College (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?