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The Capriciousness of Small Numbers

MBAA TQ vol. 10, no. 1, 1973, pp. 94-96 | VIEW ARTICLE

Soltoft, M.

Abstract
This paper presents a graph for use in assessing confidence intervals of quality control findings based on counting. A number of practical examples ar used to demonstrate the low informative value of small counts and to show the extent to which tills can be improved through increasing the size of the sample examined. Th graph is applicable not only to counts obtained in connection with quality control in the traditional sense but generally to all types of statements based on counting, for example to the resuits of opinion polls.
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