The confidence lower bound, upper bound, and accurate confidence interval of unknown parameter in Poisson distribution are obtained by employing the method of hypothesis testing. It also provided theoretical basis for practical application. 用假设检验法构造了Poisson分布中未知参数的置信下限和上限,及精确置信区间,为实际应用提供了理论依据。
Environmental test and life test were applied to the sensor, and the environmental confidence level and the one - sided confidence lower limit of MTBF were estimated with the fiducial method, confidence interval method and Bayes method. 首先对这种传感器实施了环境试验与寿命试验,并用经典法、信赖法和贝叶斯法估计了环境可靠度及MTBF的单侧置信下限。
Using concepts of the upper ( lower ) approximation in the rough set theory and the definition of confidence degree, random parameters in an engineering structure could be transferred into the interval numbers. 根据粗糙集理论中的上、下近似集概念和随机参数的定义,可以把结构分析中的随机参数转化为一定置信度意义下的区间数。