The Moments of the Pearson Chi-Squared Statistic and the Minimum Expected Value in Two-Way Tables
二维列联表中 Pearson 卡方统计量的矩与最小期望频数AI 解读 ↓
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。
DOI 首次登记不等于接收或发表日期。部分更正、评论等条目没有独立摘要;缺少可靠材料时保留待补状态。
引用量采用 OpenAlex 单条关联记录,不合计多个记录;关联记录可能包含正式发表版本,不等于此版本单独引用。缺失不视为零,引用指标不代表论文质量。
关注作者按书目中的完整姓名匹配,同名和姓名变体需人工辨别。相关论文先按共享细分方向和具体方法排列,再参考通用方法与发表日期。
AI 根据所提供的论文材料归类:摘要讨论列联表检验的通用分布近似,没有所列计量领域细分的明确应用依据。
反馈分类问题二维列联表中 Pearson 卡方统计量的矩与最小期望频数AI 解读 ↓
正在核对关联版本…
正在核对对应版本的资源…
Explicit expressions for the first three moments of Pearson's X2 statistic for a two-way contingency table are used to investigate the accuracy of the χ2 approximation to its distribution. The usual ’minimum expected value' criterion is shown to give a global bound on the accuracy of the moments, but to be too conservative. This is illustrated by examples. It is shown that the adequacy of the approximation depends on the significance level that is to be used as well as the accuracy of the moments. When the χ22 approximation is inadequate, corrections based on the moments can be used. Numerical studies of the usefulness of these corrections are presented.