应用统计学试题20036(A)

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1、华东理工大学2002---2003学年第二学期(A)《应用统计学》试题(工商经济学院00级)班级_________姓名__________学号___________成绩__________注意：本试卷为开卷考试题，所有的计算都要给出计算过程，否则不给分。1.（30分）在把氨氧化成硝酸的生产过程中，希望求得氨的损失率ｙ关于空气流速ｘ１，冷却水温度ｘ２，吸收液中硝酸的浓度ｘ３的回归方程，现收集到17组数据，见下表。nx1x2x3yRx1Rx2Rx3Ry18027894216.516.511.517.028027883716.516.59.515.53

2、7525903715.015.013.015.546222871811.510.07.011.556223871811.511.57.011.566224931911.513.516.013.076224932011.513.516.014.08582387157.511.57.09.09581889147.52.511.57.010581788137.51.09.56.011581993127.55.016.05.01250188672.52.55.01.01350197282.55.01.02.51450197982.55.02.02.515

3、50208092.58.03.04.016562082155.08.04.09.0177020911514.08.014.09.0附表：SPSS计算结果表(1)VariablesEntered/RemovedaModelVariablesEnteredVariablesRemovedMethod1X1.Stepwise(Criteria:Probability-of-F-to-enter<=.090,Probability-of-F-to-remove>=.100).2X2.Stepwise(Criteria:Probability-of-F-t

4、o-enter<=.090,Probability-of-F-to-remove>=.100).aDependentVariable:Y表(2)ANOVAcModelSumofSquaresdfMeanSquareFSig.1Regression1588.74811588.748108.229.000aResidual220.1931514.680Total1808.941162Regression1665.3282832.66481.171.000bResidual143.6131410.258Total1808.94116a:Predicto

5、rs:(Constant),X1b:Predictors:(Constant),X1,X2c:DependentVariable:Y7表(3)CoefficientsaModelUnstandardizedCoefficientsBStd.ErrortSig.1(Constant)-43.9966.037-7.288.000X11.013.09710.403.0002(Constant)-50.6055.596-9.043.000X1.721.1345.366.000X21.141.4182.732.016a:DependentVariable:

6、Y表(4)VariablesEntered/RemovedaModelVariablesEnteredVariablesRemovedMethod1RX12.Stepwise(Criteria:Probability-of-F-to-enter<=.090,Probability-of-F-to-remove>=.100).2RX1.Stepwise(Criteria:Probability-of-F-to-enter<=.090,Probability-of-F-to-remove>=.100).3RX11.Stepwise(Criteria:

7、Probability-of-F-to-enter<=.090,Probability-of-F-to-remove>=.100).a:DependentVariable:RY表(5)ANOVAdModelSumofSquaresdfMeanSquareFSig.1Regression350.8641350.86498.124.000aResidual53.636153.576Total404.500162Regression361.4612180.73058.789.000bResidual43.039143.074Total404.50016

8、3Regression385.2463128.41586.705.000cResidual19.254131.481Total404.5