Estimations for a simple step-stress model with progressively type-ii censored data

淡江大學機構典藏 > 商管學院 > 統計學系暨研究所 > 期刊論文 > Item 987654321/20689

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題名:	Estimations for a simple step-stress model with progressively type-ii censored data
作者:	Wu, Shuo-jye;Lee, Hsiu-mei;Chen, Dar-hsin
貢獻者:	淡江大學統計學系
關鍵詞:	Accelerated life test;confidence interval;exponential distribution;maximum likelihood method;pivotal quantity;progressive type II censoring
日期:	2005-10-01
上傳時間:	2009-11-30 12:56:39 (UTC+8)
出版者:	World Scientific Publishing
摘要:	With today's high technology, some life tests result in no or very few failures by the end of test. In such cases, an approach is to do life test at higher-than-usual stress conditions in order to obtain failures quickly. This study discusses the point and interval estimations of parameters on the simple step-stress model in accelerated life testing with progressive type II censoring. An exponential failure time distribution with mean life that is a log-linear function of stress and a cumulative exposure model are considered. We derive the maximum likelihood estimators of the model parameters. Confidence intervals for the model parameters are established by using pivotal quantity and can be applied to any sample size. A numerical example is investigated to illustrate the proposed methods.
關聯:	International Journal of Reliability, Quality and Safety Engineering 12(5), pp.385-395
DOI:	10.1142/S0218539305001902
顯示於類別:	[統計學系暨研究所] 期刊論文

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