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Analysis of Burr Type-XII Distribution Under Step Stress Partially Accelerated Life Tests with Type-I and Adaptive Type-II Progressively Hybrid Censoring Schemes

机译:使用I型和自适应II型渐进混合检查方案的阶跃应力局部加速寿命试验下Burr XII型分布的分析

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摘要

In this paper, we investigate the maximum likelihood estimation of the unknown parameters of the Burr Type-XII distribution and the acceleration factor based on two different progressively hybrid censoring schemes, namely, Type-I progressive hybrid censoring scheme (T-I PHCS) proposed by Kundu and Joarder (Comput Stat Data Anal 50:2509-2528,2006) and adaptive Type-II progressive hybrid censoring scheme (AT-II PHCS) introduced by Ng et al. (Nav Res Logist 56:687-698,2009) under step-stress partially accelerated life test model. The observed Fisher information matrix is obtained to construct an approximate confidence interval for the unknown parameters. The performances of the estimators of the model parameters using the above mentioned progressively hybrid censoring schemes are evaluated and compared in terms of the mean squared errors and relative errors through a Monte Carlo simulation study.
机译:在本文中,我们基于Kundu提出的两种不同的渐进混合检查方案,即I型渐进混合检查方案(TI PHCS),研究了Burr XII分布的未知参数和加速因子的最大似然估计。和Joarder(Comput Stat Data Anal 50:2509-2528,2006)和Ng等人介绍的自适应II型渐进混合检查方案(AT-II PHCS)。 (Nav Res Logist 56:687-698,2009)在阶跃应力下部分加速了寿命测试模型。获得观测的Fisher信息矩阵,以构造未知参数的近似置信区间。通过蒙特卡罗模拟研究,评估并比较了使用上述渐进混合检查方案的模型参数估计量的性能,并根据均方误差和相对误差进行了比较。

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