A student study of the effects of caffeine asked volunteers to take a memory test 2 hours after drinking soda. Some drank caffeine-free, some drank regular, and others drank a mixture of the two (getting a half-dose of caffeine). The 5-number summaries for each group's scores (number of items recalled correctly) on the memory test are shown below. Complete parts a through d. No Caffeine Low Caffeine High Caffeine 1555 a) Describe the W's for these data. Who Min 16 15 13 Q1 17 18 15 When 228 Median 21 22 18 What How Where Why b) Name the variables and classify each as categorical or quantitative. The two variables are the and the which are and variables respectively. c) Create side-by-side boxplots to display these results as best you can with this information. Q3 23 222 23 22 Create side-by-side boxplots, where N represents the group with no caffeine, L the group with low caffeine, and H the group with high caffeine. Choose the correct graph below. OA. 130009 O B. 30- 2 C. 30- Scores HOH H 2005 HOO oo H Q Q O D. Scores HIHI HOH 6 & 1 Max 27 27 23