| 摘要: |
| 推导了四单元混联系统屏蔽数据场合下的似然函数，并且给出了常数失效率单元和线性失效率单元所组成的四单元混联系统屏蔽数据的参数的极大似然估计，以及采用似然比构造区间估计的方法得到参数的近似区间估计. |
| 关键词: 屏蔽数据 四单元混联系统 极大似然估计 近似区间估计 |
| DOI：10.3969/J.ISSN.100-5137.2017.02.002 |
| 分类号: |
| 基金项目:上海市教育委员会科研创新重点项目（14ZZ155） |
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| Statistical analysis of four-unit hybrid system for masked data |
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Xu Xiaoling1, Duan Guifeng2, Wang Ronghua2, Gu Beiqing1
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1.School of Statistics and Information, Shanghai University of International Business and Economics, Shanghai 201620, China;2.College of Mathematics and Science, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| The likelihood function of four-unit hybrid system is deduced based on masked data.The maximum likelihood estimates of parameters are proposed for hybrid system composed of four units with constant failure rate and linear failure rate based on masked data.Besides,the approximate interval estimates of parameters are obtained by using likelihood ratio to construct interval estimate. |
| Key words: masked data four-unit hybrid system maximum likelihood estimate approximate interval estimate |
