试验设计与数据处理课后作业.docVIP

习题三 3-7 金球 SAS处理结果： Sample Statistics for x N Mean Std. Dev. Std. Error ------------------------------------------------- 6 6.68 0.00 0.00 Hypothesis Test Null hypothesis: Mean of x = 0 Alternative: Mean of x ^= 0 t Statistic Df Prob t --------------------------------- 4228.344 5 .0001 90 % Confidence Interval for the Mean Lower Limit: 6.67 Upper Limit: 6.68 由运行结果可知，μ的置信度为0.9的置信区间 （6.67，6.68）。 Sample Statistics for x N Mean Std. Dev. Variance --------------------------------------------- 6 6.6782 0.0039 15E-6 Hypothesis Test Null hypothesis: Variance of x = 1 Alternative: Variance of x ^= 1 Chi-square Df Prob --------------------------------- 0.000 5 .0001 90% Confidence Interval for the Variance Lower Limit Upper Limit ----------- ----------- 676E-8 0.0001 由运行结果可知，σ2的置信度为0.9的置信区间（676E-8，0.0001）。 （2）铂球 SAS处理结果： Sample Statistics for x N Mean Std. Dev. Std. Error ------------------------------------------------- 5 6.66 0.00 0.00 Hypothesis Test Null hypothesis: Mean of x = 0 Alternative: Mean of x ^= 0 t Statistic Df Prob t --------------------------------- 4967.052 4 .0001 90 % Confidence Interval for the Mean Lower Limit: 6.66 Upper Limit: 6.67 由运行结果可知，μ置信度为0.9的的置信区间 （6.66，6.67）。 Sample Statistics for x N Mean Std. Dev. Variance --------------------------------------------- 5 6.664 0.003 9E-6 Hypothesis Test Null hypothesis: Variance of x = 1 Alternative: Variance of x ^= 1 Chi-square Df Prob --------------------------------- 0.000 4 .0001 90% Confidence Interval for the Variance Lower Limit Upper Limit ----