试验与数据处理作业

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1、实验设计与数据处理课后题作业机械工程包装工程09硕任艳玲S090801010习题3-6（1）已知σ=0.6，SAS处理结果：SampleStatisticsforxNMeanStd.Dev.Std.Error-------------------------------------------------96.000.570.19HypothesisTestNullhypothesis:Meanofx=0Alternative:Meanofx^=0Withaspecifiedknownstand

2、arddeviationof0.6ZStatisticProb>Z-------------------30.000<.000195%ConfidenceIntervalfortheMeanLowerLimitUpperLimit----------------------5.616.39所以，μ的置信度为0.95的置信区间为（5.61，6.39）。3-6（2）σ未知，SampleStatisticsforxNMeanStd.Dev.Std.Error----------------------

3、---------------------------96.000.570.19HypothesisTestNullhypothesis:Meanofx=0Alternative:Meanofx^=0tStatisticDfProb>t---------------------------------31.3348<.000195%ConfidenceIntervalfortheMeanLowerLimit:5.56UpperLimit:6.44所以，μ的置信度为0.95的置信区间为（5.56，

4、6.44）。习题3-7（1）SampleStatisticsforxNMeanStd.Dev.Std.Error-------------------------------------------------66.680.000.00HypothesisTestNullhypothesis:Meanofx=0Alternative:Meanofx^=0tStatisticDfProb>t---------------------------------4228.3445<.000190%Con

5、fidenceIntervalfortheMeanLowerLimit:6.67UpperLimit:6.68因此，μ的置信度为0.9的置信区间（6.67，6.68）。SampleStatisticsforxNMeanStd.Dev.Variance---------------------------------------------66.67820.003915E-6HypothesisTestNullhypothesis:Varianceofx=1Alternative:Variance

6、ofx^=1Chi-squareDfProb---------------------------------0.0005<.000190%ConfidenceIntervalfortheVarianceLowerLimitUpperLimit----------------------676E-80.0001因此，σ的置信度为0.9的置信区间（676E-8，0.0001）。（2）SampleStatisticsforxNMeanStd.Dev.Std.Error----------------

7、---------------------------------56.660.000.00HypothesisTestNullhypothesis:Meanofx=0Alternative:Meanofx^=0tStatisticDfProb>t---------------------------------4967.0524<.000190%ConfidenceIntervalfortheMeanLowerLimit:6.66UpperLimit:6.67因此，μ置信度为0.9的的置信区间

8、（6.66，6.67）。SampleStatisticsforxNMeanStd.Dev.Variance---------------------------------------------56.6640.0039E-6HypothesisTestNullhypothesis:Varianceofx=1Alternative:Varianceofx^=1Chi-squareDfProb---------------------------------0.0004<.000190%Confi