A unified confidence interval for reliability-related quantities of two-parameter Weibull distribution

Statistical inference methods for the Weibull parameters and their functions usually depend on extensive tables, and hence are rather inconvenient for the practical applications. In this paper, we propose a general method for constructing confidence intervals for the Weibull parameters and their fun...

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Bibliographic Details
Published in:Journal of statistical computation and simulation 2007-05, Vol.77 (5), p.365-378
Main Authors: Yang, Zhenlin, Xie, Min, Wong, Augustine C.M.
Format: Article
Language:English
Subjects:
Analytical adjustment
Confidence interval
Mean-time-to-failure
Percentile
Reliability
Type II censoring
Weibull-to-exponential transformation
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Summary:Statistical inference methods for the Weibull parameters and their functions usually depend on extensive tables, and hence are rather inconvenient for the practical applications. In this paper, we propose a general method for constructing confidence intervals for the Weibull parameters and their functions, which eliminates the need for the extensive tables. The method is applied to obtain confidence intervals for the scale parameter, the mean-time-to-failure, the percentile function, and the reliability function. Monte-Carlo simulation shows that these intervals possess excellent finite sample properties, having coverage probabilities very close to their nominal levels, irrespective of the sample size and the degree of censorship.
ISSN:0094-9655
1563-5163
DOI:10.1080/00949650701227452