Weibull distribution parameter confidence interval estimation method based on nonlinear fitting

Weibull distribution parameter confidence interval estimation method based on nonlinear fitting

  • CN 109,145,258 B
  • Filed: 11/29/2018
  • Issued: 08/07/2020
  • Est. Priority Date: 11/29/2018
  • Status: Active Grant
First Claim
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1. The Weibull distribution parameter confidence interval estimation method based on nonlinear fitting is characterized by comprising the following steps of:

  • (1) calculating point estimation of a Weibull distribution parameter based on a nonlinear fitting method;

    recording the failure time of sample data of n sample products obtained by the life test, namely the sample products as t1,…

    ,tnLet a t1





    tnLet i be sample data tiIs estimated according to equation (4) for sample data tiThe failure probability of (2);

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