Implementing lifetime performance index of products with two-parameter exponential distribution
學年 100
學期 1
出版(發表)日期 2011-08-01
作品名稱 Implementing lifetime performance index of products with two-parameter exponential distribution
作品名稱(其他語言)
著者 Lee, Hsiu-Mei; Wu, Jong-Wuu; Lei, Chia-Ling; Hung, Wen-Liang
單位 淡江大學統計學系
出版者 Abingdon: Taylor & Francis
著錄名稱、卷期、頁數 International Journal of Systems Science 42(8), pp.1305-1321
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.
關鍵字 reliability; reliability testing; two-parameter exponential distribution; censored sample; UMVUE
語言 en
ISSN 0020-7721; 1464-5319
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Wu, Jong-Wu
審稿制度
國別 GBR
公開徵稿
出版型式 紙本
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