Pooling Mean Squares
作者:
J. Singh,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1971)
卷期:
Volume 66,
issue 333
页码: 82-85
ISSN:0162-1459
年代: 1971
DOI:10.1080/01621459.1971.10482223
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An experimenter has a sample for estimating the variance σ32. Suppose he has two other independent samples which are suspected to have come from the same population with variance σ32. Whether to pool the three samples to estimate σ32depends on the outcome of two preliminary tests. This article discusses a sometimes pool estimate of σ32and compares this with the usual estimate of σ32, obtained from the first sample only, as regards bias and mean square error.
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