标签: ttest

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分享 SAS ttest过程: liwenhui 2013-1-23 22:20; data fwk; input dstyle capacities; cards; 1 44 1 28 1 51 1 40 0 10 0 71 0 54 0 11 0 82 0 34 0 43 0 22 0 13 0 8 1 9 1 70 ; run; proc ttest; class dstyle; var capacities; run; 得到结果： The TTEST Procedure Variable: capacities dstyle N Mean Std Dev Std Err Minimum Maximum 0 10 34.8000 26.9023 8.5073 8.0000 82.0000 1 6 40.3333 20.6946 8.4485 9.0000 70.0000 Diff (1-2) -5.5333 24.8638 12.8396 dstyle Method Mean 95% CL Mean Std Dev 95% CL Std Dev 0 34.8000 15.5553 54.0447 26.9023 18.5043 49.1131 1 40.3333 18.6157 62.0510 20.6946 12.9177 50.7559 Diff (1-2) Pooled -5.5333 -33.0716 22.0049 24.8638 18.2035 39.2127 Diff (1-2) Satterthwaite -5.5333 -31.4542 20.3875 Method Variances DF t Value Pr |t| Pooled Equal 14 -0.43 0.6731 Satterthwaite Unequal 12.908 -0.46 0.6521 Equality of Variances Method Num DF Den DF F Value Pr F Folded F 9 5 1.69 0.5848; 个人分类: 在人间|607 次阅读|0 个评论

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