【摘要】 用传统方法得到的两正态分布方差比的置信区间显然不是最短的,因而就此意义而言也不是最佳的.本文得到优化后的置信区间,并将它与传统的置信区间比较.结果表明:优化后的最短置信区间比原置信区间有较明显的改进.更多还原

【Abstract】 The traditional method the confidence interval is not the shortest,so it is not the best one in this sence.Obtained the shortest confidence interval in theory.To show its advantages,compared it to the traditional confidence interval in an example.It was proved that the new confidence is better than the traditional one.更多还原