Importance of the rational subgroups in
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Mustafa Sefik
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Article
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1998
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Elsevier Science
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English
β 318 KB
Sampling is useful only if the sample data are representative of an entire population at the time they are taken. A system's common and special causes have to be represented by each sample, If special causes are present, then the sample should reflect those. Here, Rational Subgrouping comes to the s