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Sample Size Required for Estimating the Standard Deviation as a Per Cent of its True Value

 

作者: JosephA. Greenwood,   MarionM. Sandomire,  

 

期刊: Journal of the American Statistical Association  （Taylor Available online 1950）
卷期: Volume 45, issue 250  

页码: 257-260

 

ISSN:0162-1459

 

年代: 1950

 

DOI:10.1080/01621459.1950.10483356

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

One frequently encounters the need of a rational selection of sample size when it is desired to estimate the standard deviation. Changing the permissible error of the estimate from an absolute to a relative one is acceptable in many cases and permits an exact,a priorisolution to the problem of sample size without involving any previous estimates.

 

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