Planning of progressive group-censoring life tests with cost considerations
學年 96
學期 1
出版(發表)日期 2008-01-01
作品名稱 Planning of progressive group-censoring life tests with cost considerations
著者 Wu, Shuo-Jye; Chang, Chun-Tao; Liao, Kang-Jun; Huang, Syuan-Rong
單位 淡江大學統計學系
出版者 Abingdon: Routledge
著錄名稱、卷期、頁數 Journal of Applied Statistics 35(11), pp.1293-1304
摘要 This paper considers a life test under progressive type I group censoring with a Weibull failure time distribution. The maximum likelihood method is used to derive the estimators of the parameters of the failure time distribution. In practice, several variables, such as the number of test units, the number of inspections, and the length of inspection interval are related to the precision of estimation and the cost of experiment. An inappropriate setting of these decision variables not only wastes the resources of the experiment but also reduces the precision of estimation. One problem arising from designing a life test is the restricted budget of experiment. Therefore, under the constraint that the total cost of experiment does not exceed a pre-determined budget, this paper provides an algorithm to solve the optimal decision variables by considering three different criteria. An example is discussed to illustrate the proposed method. The sensitivity analysis is also studied.
關鍵字 A-optimality;D-optimality;E-optimality;grouped data; maximum likelihood method;progressive censoring;Weibull distribution
語言 en
ISSN 0266-4763; 1360-0532
期刊性質 國外
收錄於 SCI
通訊作者 Wu, Shuo-Jye
國別 GBR
出版型式 紙本

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