Implementing lifetime performance index of products with two-parameter exponential distribution

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題名:	Implementing lifetime performance index of products with two-parameter exponential distribution
作者:	Lee, Hsiu-Mei;Wu, Jong-Wuu;Lei, Chia-Ling;Hung, Wen-Liang
貢獻者:	淡江大學統計學系
關鍵詞:	reliability;reliability testing;two-parameter exponential distribution;censored sample;UMVUE
日期:	2011-08
上傳時間:	2011-10-23 16:34:27 (UTC+8)
出版者:	Abingdon: Taylor & Francis
摘要:	The manufacturing industry has prioritised enhancing the quality, lifetime and conforming rate of products. Process capability indices (PCIs) are used to measure process potential and performance. The process capability is evaluated with product survival time and a longer lifetime implies a better process capability and a higher reliability. In order to save experimental time and cost, a censored sample arises in practice. In the case of product possessing a two-parameter exponential distribution, this study constructs a uniformly minimum variance unbiased estimator (UMVUE) of the lifetime performance index based on the type II right-censored sample. Then the UMVUE of the lifetime performance index is utilised to develop the new hypothesis testing procedure in the condition of known lower specification limit. Finally, two practical examples are illustrated to employ the testing procedure to determine whether the product is reliable.
關聯:	International Journal of Systems Science 42(8), pp.1305-1321
DOI:	10.1080/00207721.2010.494774
顯示於類別:	[統計學系暨研究所] 期刊論文

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