Sample size needed to get given ratio of endpoints for confidence interval of standard deviation in a normal distribution

被引：3

作者：

Tarasinska, Joanna ^{[1
]}

机构：

[1] Univ Life Sci, Dept Appl Math & Comp Sci, Gleboka 28, PL-20612 Lublin, Poland

来源：

COMMUNICATIONS IN STATISTICS-THEORY AND METHODS | 2017年 / 46卷 / 23期

关键词：

Confidence interval; Normal distribution; Sample size; Standard deviation;

D O I：

10.1080/03610926.2016.1271428

中图分类号：

O21 [概率论与数理统计]; C8 [统计学];

学科分类号：

020208 ; 070103 ; 0714 ;

摘要：

Confidence interval (CI) for a standard deviation in a normal distribution, based on pivotal quantity with a Chi-square distribution, is considered. As a measure of CI quality, the ratio of its endpoints is taken. There are given formulas for sample sizes so that this ratio does not exceed a fixed value. Both equally tailed and minimum ratio of endpoint CIs are considered.

引用

页码：11480 / 11484

页数：5

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