A New Discrete Modified Weibull Distribution

被引：33
|
作者：
Almalki, Saad J. [1 ,2 ]
Nadarajah, Saralees [2 ]
机构：
[1] Taif Univ, Dept Math & Stat, At Taif, Saudi Arabia
[2] Univ Manchester, Sch Math, Manchester M13 9PL, Lancs, England
来源：
IEEE TRANSACTIONS ON RELIABILITY | 2014年 / 63卷 / 01期
关键词：
Bathtub shaped failure rate; discrete distribution; lifetime models; modified Weibull distribution; MODEL; PARAMETERS; HAZARD;
D O I：
10.1109/TR.2014.2299691
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A three-parameter discrete distribution is introduced based on a recent modification of the continuous Weibull distribution. It is one of only three discrete distributions allowing for bathtub shaped hazard rate functions. We study some of its mathematical properties, discuss estimation by the method of maximum likelihood, and describe applications to four real data sets. The new distribution is shown to outperform at least three other models including those allowing for bathtub shaped hazard rate functions.
引用
收藏
页码：68 / 80
页数：13
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