使用有限合格样本的样本均值和极值进行批量验收测试

IF 2.6 2区 工程技术 Q2 ENGINEERING, INDUSTRIAL
S. Kloppenborg
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引用次数: 0

摘要

在航空航天复合材料工业中,对新材料批次进行测试以确定其是否适合使用。通过将样品平均值和下限值与基于材料性能测量的初始(合格)样品建立的参考值进行比较,通常可以接受或拒绝材料批次。目前的行业实践假设样本是从正态分布中提取的,已知参数等于合格样本的平均值和标准偏差:这种假设导致生产者的风险太高。考虑到合格样本的抽样分布,本文提出了一种设置这些参考值的双样本方法。通过仿真验证了该方法的有效性,结果表明该方法产生的I类误差概率是正确的。仿真研究了新方法的统计能力,并与其他常用方法进行了比较。最后以复合材料工业数据为例,说明了该方法的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lot acceptance testing using sample mean and extremum with finite qualification samples
Abstract In the aerospace composites industry, new material lots are tested to determine if they are suitable for use. It is common to accept or reject the material lot by comparing the sample mean and lower extremum to reference values that are established based on an initial (qualification) sample of material property measurements. Current industry practices assume that the samples are drawn from a normal distribution with known parameters equal to the mean and standard deviation of the qualification sample: this assumption yields a producer’s risk that is too high. This article presents a two-sample method of setting these reference values, considering the sampling distribution of the qualification sample. This new method is validated through simulation which shows that it produces the correct probability of Type I error. Simulation is also used to investigate the statistical power of the new method and it is compared to others commonly used. A case study is presented to demonstrate the use of the new method using composite material data from industry.
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来源期刊
Journal of Quality Technology
Journal of Quality Technology 管理科学-工程:工业
CiteScore
5.20
自引率
4.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: The objective of Journal of Quality Technology is to contribute to the technical advancement of the field of quality technology by publishing papers that emphasize the practical applicability of new techniques, instructive examples of the operation of existing techniques and results of historical researches. Expository, review, and tutorial papers are also acceptable if they are written in a style suitable for practicing engineers. Sample our Mathematics & Statistics journals, sign in here to start your FREE access for 14 days
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