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| 引用本文： | 刘利华,李建波. ��ʱ��β������ƽ�������ȹ����о�[J]. 应用概率统计, 2012, 28(1): 87-92 |
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| 作者姓名： | 刘利华 李建波 |
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| 作者单位： | ??????????????,?????????????????? |
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| 基金项目： | 国家自然科学基金项目(10871072)资助 |
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| 摘 要： | 本文讨论了相互独立且寿命服从单参数指数分布的两产品在定时截尾寿命试验中的平均寿命比估计,并给出了该估计量的渐近正态性和置信区间.如果某一种(或某一类)产品与另一种(或某一类)产品平均寿命比率显著大于1,那么该种产品就具有耐用优势, 这在投资决策中有重大意义.通过数值模拟还进一步验证了该比估计量和估计方法的有效性.
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| 关 键 词： | 比估计 定时截尾寿命试验 渐近正态性 |
Estimation of the Mean Life Ratio under Type-I Life Test |
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| Liu Lihua,Li Jianbo. Estimation of the Mean Life Ratio under Type-I Life Test[J]. Chinese Journal of Applied Probability and Statisties, 2012, 28(1): 87-92 |
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| Authors: | Liu Lihua Li Jianbo |
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| Affiliation: | School of Science, Shanxi University of;Science and Technology, School of Mathematical Sciences, Xuzhou;Normal University |
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| Abstract: | In this paper, we studied the meanlife ratio estimate between two populations, independently followingone parameter exponential distribution in a type-I censoring lifetest. Under some conditions, we showed that the ratio estimate isasymptotically normally distributed. Based on the asymptoticnormality, we also established its confidence interval. By asimulation study, we illustrated the validation of the ratioestimate. |
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| Keywords: | Ratio estimate type-I censoring life test asymptotic normality |
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