SOME RESULTS ON MAXIMUM-LIKELIHOOD ESTIMATORS OF PARAMETERS OF EXPONENTIAL-DISTRIBUTION UNDER TYPE-I PROGRESSIVE CENSORING WITH CHANGING FAILURE RATES

被引:5
|
作者
PATEL, MN
GAJJAR, AV
机构
[1] R G SHAH SCI COLL,DEPT STAT,AHMEDABAD 7,GUJARAT,INDIA
[2] GUJARAT UNIV,DEPT STAT,AHMEDABAD 9,GUJARAT,INDIA
关键词
CENSORED SAMPLES; PROGRESSIVE CENSORING; RELATIVE BIAS; EXACT VARIANCE; MEAN SQUARE ERROR; EXPONENTIAL DISTRIBUTION; EXPECTED WAITING TIME;
D O I
10.1080/03610929508831624
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
In this paper the study of relative bias (RB), exact variance and mean square error (MSE) of the maximum likelihood estimators of the exponential distribution under type I progressive censoring with changing failure rates is considered. A minimum mean square error (MMSE) estimator for the parameter at each stage is proposed. The numerical evalution of their relative performance is made for selected values of n and p. Further results concerning group-censoring, total expected waiting time and optimal spacings of the times of censoring are derived and results obtained by Kendell and Anderson (1971) are deduced as special cases.
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页码:2421 / 2435
页数:15
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