Wilcoxon Scores (Rank Sums) for Variable 应变量名 Classified by Variable 分组变量名 Sum of Expected Std Dev Mean 分组变量名 N Scores Under H0 Under H0 Score 样本量 各组的秩和 各组的期望秩和 秩和的标准差 各组的平均秩次 1 10 170.0 115.0 15.1529004 17.0000000 2 12 83.0 138.0 15.1529004 6.9166667 Average Scores Were Used for Ties Wilcoxon 2-Sample Test (Normal Approximation) (with Continuity Correction of .5) S = 170.000 Z = 3.59667 Prob > |Z| = 0.0003 如果按照正态近似法做秩和检验，则Z=3.59667，p=0.0003。 T-Test Approx. Significance = 0.0017 做近似t检验则p=0.0017 Kruskal-Wallis Test (Chi-Square Approximation) CHISQ = 13.174 DF = 1 Prob > CHISQ = 0.0003 用 近似做K-W法秩和检验，则 =13.174，p=0.0003。
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