2.3.8 The following are the ages of 30 patients seen in the emergency room of a hospital on a Friday night. Construct a stem-and-leaf display from these data. Describe these data rela- tive to symmetry and skewness as discussed in Exercise 2.3.1, part h.

of the two displays suggest regarding the two hospitals? Describe the two sets of data with respect to symmetry and skewness as discussed in Exercise 2.3.1, part h. Hospital A 249.10 214.30 202.50 222.20 214.40 205.90 195.10 201.20 239.80 171.10 222.00 248.30 209.70 213.30 225.50 191.40 245.70 213.00 238.80 212.50 201.70 184.90 235.90 229.80 217.90 Hospital B 199.50 184.00 125.50 143.50 154.70 145.30 167.70 203.40 168.90 166.70 173.20 186.00 214.10 190.40 152.00 165.70 154.60 190.30 135.40 186.70 178.60 155.30 150.20 195.90 212.40

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of the two displays suggest regarding the two hospitals? Describe the two sets of data with respect to symmetry and skewness as discussed in Exercise 2.3.1, part h. Hospital A 249.10 214.30 202.50 222.20 214.40 205.90 195.10 201.20 239.80 171.10 222.00 248.30 209.70 213.30 225.50 191.40 245.70 213.00 238.80 212.50 201.70 184.90 235.90 229.80 217.90 Hospital B 199.50 184.00 125.50 143.50 154.70 145.30 167.70 203.40 168.90 166.70 173.20 186.00 214.10 190.40 152.00 165.70 154.60 190.30 135.40 186.70 178.60 155.30 150.20 195.90 212.40 2.3.10 Refer to the ages of patients discussed in Example 1.4.1 and displayed in Table 1.4.1. (a) Use class interval widths of 5 and construct A frequency distribution A relative frequency distribution A cumulative frequency distribution A cumulative relative frequency distribution A histogram A frequency polygon (b) Describe these data with respect to symmetry and skewness as discussed in Exercise 2.3.1, part h. 2.3.11 The objectives of a study by Skjelbo et al. (A-5) were to examine (a) the relationship between chloroguanide metabolism and efficacy in malaria prophylaxis and (b) the mephenytoin metabolism and its relationship to chloroguanide metabolism among Tanza- nians. From information provided by urine specimens from the 216 subjects, the investi gators computed the ratio of unchanged S-mephenytoin to Amephenytoin (S/R ratio). The results were as follows: