
Accession Number : ADA183355
Title : Estimating Jointly System and Component Reliabilities Using a Mutual Censorship Approach.
Descriptive Note : Technical rept.,
Corporate Author : STANFORD UNIV CA DEPT OF STATISTICS
Personal Author(s) : Doss,Hani ; Freitag,Steven ; Proschan,Frank
PDF Url : ADA183355
Report Date : 07 Jul 1987
Pagination or Media Count : 29
Abstract : Let F denote the life distribution of a coherent structure of independent components. Suppose that we have a sample of independent systems, all having the same structure. Each system is continuously observed until it fails. For every component in each system, either a failure time or a censoring time is recorded. A failure time is recorded if the component fails before or at the time of system failure; otherwise a censoring time is recorded. The authors introduce a method for finding estimates for F(t), quantiles, and other functionals of F, based on the censorship of the component lives by system failure. They use the theory of counting processes and stochastic integrals to obtain limit theorems that enable the construction of confidence intervals for large samples. This approach extends and gives a novel application of censoring methodology. Keywords: Statistical theory; Asymptotic distribution.
Descriptors : *COUNTING METHODS, *THEORY, *ESTIMATES, *STATISTICAL DISTRIBUTIONS, ASYMPTOTIC SERIES, COHERENCE, FAILURE, SAMPLING, CENSORSHIP, INTEGRALS, CONFIDENCE LIMITS, STATISTICS, RELIABILITY, WEAK CONVERGENCE, RANDOM VARIABLES, MATHEMATICAL MODELS, PARAMETRIC ANALYSIS
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE