Minitab田口实验设计.docx

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1、Minitab的田口实验设计——MINITAB统计分析教程实验数据(前9行7列，其余为结果数据)：材料直径波纹厚度司机生铁信噪比1LSTD11Liquid1183920.03247.5234.328.23562.233642Liquid1184220.06224.4214.529.92431.945963Liquid1563920.0359.449.517.81761.945964Liquid1564220.0675.972.630.05400.847355Tungsten1183920.06155.1148.530

2、.24491.540506Tungsten1184220.0339.629.713.89171.945967Tungsten1563920.0692.482.521.93281.945968Tungsten1564220.0321.918.618.76850.84735续表平均值1变异系数1平均值拟合1标准差拟合1信噪比拟合1平均值系数1标准差系数1信噪比系数11240.900.038746162.1138.7504522.0928110.4005.8336323.85872219.450.031900161.287

3、5.2502729.055451.3001.166731.7154354.450.12856559.5136.4169918.661923.2501.166730.6990474.250.03142758.6882.9168225.6245-22.8370.58336-4.18035151.800.030744207.7877.5837230.4535634.650.202031115.6136.4169920.6947787.450.080050105.1885.2502727.0226820.250.115232

4、13.0134.0835417.2638创建田口实验：分析田口实验的设置：实验结果：—————987351:11:22————————————————————欢迎使用Minitab，请按F1获得有关帮助。田口设计田口正交表设计L8(2**4)因子:4试验次数:8列L8(2**7)阵列1234田口分析:司机,生铁与直径,波纹,厚度线性模型分析:信噪比与直径,波纹,厚度信噪比的模型系数估计系数标项系数准误TP常量23.85872.04111.6890.000直径1181.71542.0410.8400.448波纹3920

5、.69902.0410.3420.749厚度0.03-4.18032.041-2.0480.110S=5.773R-Sq=55.6%R-Sq（调整）=22.4%对于信噪比的方差分析来源自由度SeqSSAdjSSAdjMSFP直径123.54223.54223.5420.710.448波纹13.9093.9093.9090.120.749厚度1139.801139.801139.8014.190.110残差误差4133.317133.31733.329合计7300.569线性模型分析:均值与直径,波纹,厚度均值的模型系

6、数估计系数标项系数准误TP常量110.4024.954.4250.011直径11851.3024.952.0560.109波纹39223.2524.950.9320.404厚度0.03-22.8424.95-0.9150.412S=70.56R-Sq=59.7%R-Sq（调整）=29.5%备注：SeqSS：SumofSquaresAdjMS:AdjustedMeanSquare对于均值的方差分析来源自由度SeqSSAdjSSAdjMSFP直径12105421054210544.230.109波纹14324432443

7、240.870.404厚度14172417241720.840.412残差误差419915199154979合计749465备注：SeqSS：SumofSquaresAdjMS:AdjustedMeanSquare线性模型分析:标准差与直径,波纹,厚度标准差的模型系数估计项系数系数标准误TP常量5.83360.77177.5590.002直径1181.16670.77171.5120.205波纹3921.16670.77171.5120.205厚度0.030.58340.77170.7560.492S=2.183R-

8、Sq=56.2%R-Sq（调整）=23.4%对于标准差的方差分析来源自由度SeqSSAdjSSAdjMSFP直径110.89010.89010.8902.290.205波纹110.89010.89010.8902.290.205厚度12.7222.7222.7220.570.492残差误差419.05819.0584.764合计743.560信