ON THE ASYMPTOTIC-DISTRIBUTION OF AN ESTIMATE OF THE CHANGE POINT IN A FAILURE RATE

被引:7
作者
GHOSH, JK
JOSHI, SN
机构
[1] INDIAN STAT INST,CALCUTTA 700035,W BENGAL,INDIA
[2] PURDUE UNIV,W LAFAYETTE,IN 47907
[3] INDIAN STAT INST,BANGALORE 560059,INDIA
[4] OHIO STATE UNIV,COLUMBUS,OH 43210
关键词
FAILURE RATE; CHANGE POINT; ASYMPTOTIC DISTRIBUTION; HYPOTHESIS TESTING;
D O I
10.1080/03610929208830996
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
The failure rate tau(t) is assumed to have the shape of the "first' part of the "bathtub" model, i.e., tau(t) is non-increasing for t < tau and is constant for t greater-than-or-equal-to tau. Asymptotic distribution of one of the estimates proposed earlier has been investigated in this paper. This leads to a test for the hypothesis H-0 : tau less-than-or-equal-to tau0 vs H-1 : tau > tau0 (where tau0 > 0). Asymptotic expression for the power of this test under Pitman alternatives is derived. Some simulations are reported.
引用
收藏
页码:3571 / 3588
页数:18
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