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本页整理公开书目信息,不生成学术质量评分。AI 解读根据题名及所注明的摘要或原文片段生成,未完成全文核验,可能有误;具体假设、证明与结论请核对原文。摘要保留来源文本,未经模型改写。

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分类依据与纠错

AI 根据所提供的论文材料归类:摘要研究正态均值的两阶段检验,未涉及所列计量领域细分的特定问题。

反馈分类问题

正在核对关联版本…

代码、数据与补充材料

正在核对对应版本的资源…

关注这篇论文的作者
John E. Hewett
William G. Bulgren
D. E. Amos

关于一种两阶段抽样检验的札记

研究问题
正态总体方差未知时,如何通过两阶段抽样检验均值,并利用第一阶段信息改善最终决策与样本量安排?
方法与思路
作者修改既有两阶段检验:首阶段可接受、拒绝或追加样本;若进入第二阶段,最终决策仍使用首阶段信息。
材料陈述的贡献
摘要称,提供两种显著性水平下的决策阈值表,并比较新检验、既有两阶段检验及若干单样本检验的功效和样本量。
阅读关注点
应核对首阶段决策区域、第二阶段样本量规则、两阶段信息的合并方式,以及功效与期望样本量比较的基准。
阅读边界
仅据所给 OpenAlex 索引摘要,稿件版本未注明;表中数值和推荐样本量未提供,不能断言该检验一致优于单样本检验。

原文摘要

A double sample test for a hypothesis concerning the mean μ of a normal random variable with unknown variance σ2 is presented in this note. This test is an alternative to the usual single sample t test and is made by taking samples at two stages. After the first sample has been observed the hypothesis is rejected, accepted or a second sample is taken. This double sample test is a modification of a double sample test suggested by D. Owen. However, for the test being suggested here if the second sample is taken the information from the first sample is used in making the final decision. A table is included which is a tabulation of the rejection and acceptance points for various sample sizes and α = .05 and α = .01. Additional tables are included which give some power values and expected sample sizes for the new test and Owen's test. These power values are compared with power values of various single sample t tests. Conclusions about desirable sample sizes are presented for both the new test and Owen's test.

笔记与分组
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