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Tabular aids for fitting weibull moment estimates

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  • W. R. Blischke
  • E. M. Scheuer

Abstract

Moment estimators for the parameters of the Weibull distribution are considered in the context of analysis of field data. The data available are aggregated, with individual failure times not recorded. In this case, the complexity of the likelihood function argues against the use of maximum‐likelihood estimation, particularly for relatively large sets of data, and moment estimators are a reasonable alternative. In this article, we derive the asymptotic covariance matrix of the moment estimators, and provide listings for BASIC computer programs which generate tables useful for calculation of the estimates as well as for estimating the asymptotic covariance matrix using aggregated data.

Suggested Citation

  • W. R. Blischke & E. M. Scheuer, 1986. "Tabular aids for fitting weibull moment estimates," Naval Research Logistics Quarterly, John Wiley & Sons, vol. 33(1), pages 145-153, February.
    • Handle: RePEc:wly:navlog:v:33:y:1986:i:1:p:145-153
    DOI: 10.1002/nav.3800330113
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