3.63 ● The article “Tobacco and Alcohol Use in G-Rated Children’s Animated Films” (Journal of the American Medical Association [1999]: 1131–1136) reported exposure to tobacco and alcohol use in all G-rated animated films released between 1937 and 1997 by five major film studios. The researchers found that tobacco use was shown in 56% of the reviewed films.

Data on the total tobacco exposure time (in seconds)

for films with tobacco use produced by Walt Disney, Inc., were as follows:

223 176 548 37 158 51 299 37 11 165 74 92 6 23 206 9 Data for 11 G-rated animated films showing tobacco use that were produced by MGM/United Artists, Warner Brothers, Universal, and Twentieth Century Fox were also given. The tobacco exposure times (in seconds) for these films was as follows:

205 162 6 1 117 5 91 155 24 55 17

a. Construct a comparative stem-and-leaf display for these data.

b. Comment on the interesting features of this display.