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Designing efficient Bayesian sampling plans for two-parameter exponential distribution with censored data

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  • Lee-Shen Chen
  • TaChen Liang
  • Ming-Chung Yang

Abstract

This article studies a method about how to design Bayesian sampling plans for two-parameter exponential distributions E(μ, λ) based on Type-II censored samples. With a linear loss of the expected life time θ=μ+1/λ, a conventional Bayesian sampling plan (BSP) (nA,rA,δA) is derived. We then study the monotonicity associated with the Bayes decision function δA. According to this monotonicity, an explicit expression of δA is presented. Based on this explicit expression, a curtailed decision function δC is constructed, and an efficient Bayesian sampling plan (EBSP) (nC,rC,δC) is developed. The curtailed decision function δC has the property that δC = δA for all Type-II censoring samples. Furthermore, the Bayes risk of EBSP (nC,rC,δC) is less than or equal to the Bayes risk of the conventional BSP (nA,rA,δA). A simulation is carried out to study the performance of (nC,rC,δC) and (nA,rA,δA). The simulated numerical results indicate that in term of Bayes risks, (nC,rC,δC) outperforms (nA,rA,δA) significantly. Finally, the rationality of some existing BSPs for two-parameter exponential distributions is addressed.

Suggested Citation

  • Lee-Shen Chen & TaChen Liang & Ming-Chung Yang, 2026. "Designing efficient Bayesian sampling plans for two-parameter exponential distribution with censored data," Communications in Statistics - Theory and Methods, Taylor & Francis Journals, vol. 55(1), pages 313-334, January.
    • Handle: RePEc:taf:lstaxx:v:55:y:2026:i:1:p:313-334
    DOI: 10.1080/03610926.2025.2496688
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