第9章方差分析思考与练习-带答案

ics: Homogeneity of Variances testР ContinueРOKР输出结果РTest of Homogeneity of VariancesР红细胞升高数(102/L)РLevene StatisticРdf1Рdf2РSig.Р.774Р2Р33Р.469РANOVAР红细胞升高数(102/L)РSum of SquaresРdfРMean SquareРFРSig.РBetween GroupsР16.002Р2Р8.001Р2452.722Р.000РWithin GroupsР.108Р33Р.003РTotalР16.110Р35РparisonsРDependent Variable: 红细胞升高数(102/L)Рt t (2-sided) aР(I) GР(J) GРMean Difference (I-J)РStd. ErrorРSig.Р95% Confidence IntervalРLower BoundРUpper BoundР2Р1Р.59750(*)Р.02332Р.000Р.5436Р.6514Р3Р1Р1.61500(*)Р.02332Р.000Р1.5611Р1.6689Р* The mean difference is significant at the .05 level.Рa t t-tests treat one group as a control, pare all other groups against it.Р2. 解:本题采用析因设计的方差分析。Р表9-9 九种不同处理情况下抑菌环的直径(mm)Р纸片弥散法Р挖洞弥散法Р钢圈弥散法Р Р黄芪Р大黄Р青霉素Р Р黄芪Р大黄Р青霉素Р黄芪Р大黄Р青霉素Р合计Р27.5Р20.9Р27.4Р24.3Р24.6Р22.0Р20.0Р19.1Р29.6