Acta mathematica scientia,Series A ›› 2022, Vol. 42 ›› Issue (1): 269-281.

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Statistical Analysis of Two-Parameter Pareto Distribution Under Double Type-Ⅱ Hybrid Censoring Scheme

Bing Long1,*(),Zhongzhan Zhang2   

  1. 1 School of Mathematics and Physics, Jingchu University of Technology, Hubei Jingmen 448000
    2 Faculty of Science, Beijing University of Technology, Beijing 100124
  • Received:2020-01-11 Online:2022-02-26 Published:2022-02-23
  • Contact: Bing Long E-mail:qh-longbing@163.com
  • Supported by:
    the NSFC(11771032);the Research Team Project of Jingchu University of Technology(TD202006)

Abstract:

On the basis of the traditional type-Ⅰ and type-Ⅱ censoring tests, a new type of censoring test scheme, double type-Ⅱ hybrid censoring, is proposed for the first time in this paper. Based on this kind of censored data, the maximum likelihood estimates of the parameters and confidence interval of θ are obtained for two-parameter Pareto distribution. The Bayesian estimates of θ, reliability function and failure rate function under three different loss functions are obtained when α is known and the Gamma prior distribution is selected. When both α and θ are unknown, we take the noninformation prior distribution and exponential prior distribution respectively, and calculate the Bayesian estimates of α and θ, the reliability function and failure rate function under the squared loss function. The Monte-Carlo method is used to simulate double type-Ⅱ hybrid censored samples, the estimates of the parameter and reliability indexes for two-parameter Pareto distribution are obtained. The relative errors are calculated, and the accuracy of various estimates is compared. Finally, a numerical example is analyzed.

Key words: Two-parameter Pareto distribution, Double type-Ⅱ hybrid censoring, Maximum likelihood estimate, Prior distribution, Bayesian estimate

CLC Number: 

  • O213
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