In an experiment to compare the effectiveness of two drugs

Chapter 10, Problem 4

(choose chapter or problem)

In an experiment to compare the effectiveness of two drugs A and B in reducing blood glucose concentrations, drug A was administered to 25 patients, and drug B was administered to 15 patients. The reductions in blood glucose concentrations for the 25 patients who received drug A are given in Table 10.44. The reductions in concentrations for the 15 patients who received drug B are given in Table 10.45. Test the hypothesis that the two drugs are equally effective in reducing blood glucose concentrations by using the Wilcoxon-Mann-Whitney ranks test. Table 10.44 Data for patients who receive drug A in Exercise 4 0.35 1.12 1.54 0.13 0.77 0.16 1.20 0.40 1.38 0.39 0.58 0.04 0.44 0.75 0.71 1.64 0.49 0.90 0.83 0.28 1.50 1.73 1.15 0.72 0.91 Table 10.45 Data for patients who receive drug B in Exercise 4 1.78 1.25 1.01 1.82 1.95 1.81 0.68 1.48 1.59 0.89 0.86 1.63 1.26 1.07 1.3