Sample Sizes for Estimating the Weibull Hazard Function from Censored Samples

Document Type

Article

Publication Date

1-1-1992

Abstract

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 sue needed to estimate a point on the hazard function with a specified degree of precision. We provide an easy-use graph that can be used with the Weibull distribution and a life test that will be terminated after a prespecified amount of time. We describe how to apply the methodology with other time-to-failure distributions and other kinds of life tests. © 1992 IEEE

Publication Source (Journal or Book title)

IEEE Transactions on Reliability

First Page

133

Last Page

138

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