e-ISSN 2231-8542
ISSN 1511-3701
Jayanthi Arasan
Pertanika Journal of Tropical Agricultural Science, Volume 17, Issue 2, July 2009
Keywords: Bivariate, time varying, censoring, covariates, asymptotic, Wald, parallel, score
Published on:
This paper investigates several asymptotic confidence interval estimates, based on the Wald, likelihood ratio and the score statistics for the parameters of a parallel two-component system model, with dependent failure and a time varying covariate, when data is censored. This model is an extension of the bivariate exponential model. The procedures are investigated via a coverage probability study using the simulated data. The results clearly indicate that the interval estimates, based on the likelihood ratio method, work better than any of the other two methods when dealing with the censored data.
ISSN 1511-3701
e-ISSN 2231-8542