SAMPLE SIZES FOR ESTIMATING THE WEIBULL HAZARD FUNCTION FROM CENSORED SAMPLES

被引：12

作者：

MEEKER, WQ

ESCOBAR, LA

HILL, DA

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT STAT,AMES,IA 50011

[2] LOUISIANA STATE UNIV,DEPT EXPTL STAT,BATON ROUGE,LA 70803

[3] MOTOROLA INC,AUTOMOT & IND ELECTR,NORTHBROOK,IL 60602

来源：

IEEE TRANSACTIONS ON RELIABILITY | 1992年 / 41卷 / 01期

关键词：

FAILURE RATE; LIFE TEST; TYPE-I CENSORING; TYPE-II CENSORING; LOCATION-SCALE DISTRIBUTION;

D O I：

10.1109/24.126687

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An important part of planning a life test is the specification of the sample size needed to achieve a specified degree of precision from the experiment. The hazard function is frequently used as a decision criterion, especially in replacement decisions. In this paper we show how to choose the sample size needed to estimate a point on the hazard function with a specified degree of precision. We provide an easy-to-use graph that can be used with the Weibull distribution and a life test that will be terminated after a pre-specified amount of time. We describe how to apply the methodology with other time-to-failure distributions and other kinds of life tests.

引用

页码：133 / 138

页数：6

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