15 28 41 41 41 61 66 100 101 201 300 310 Stata命令为: kx=38 结果为 Wilcoxon signed-rank test15 20 21 25 28 33 35 36 38 39 40 41 41 41 42 50 55 58 61 66 70 85 85 90 99 100 101 150 169 180 200 201 226 250 300 310 Stata 命令为: signrank x=38 结果为: Wilcoxon signed-rank test