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A uniformed approach to capability indices
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
1995 (English)In: Statistica sinica, ISSN 1017-0405, E-ISSN 1996-8507, Vol. 5, no 2, 805-820 p.Article in journal (Refereed) Published
Abstract [en]

A new class of capability indices, containing $C\sb p$, $C\sbpk$, $C\sbpm$, and $C\sbpmk$, is defined. By varying the parameters of the studied class, indices with different properties can be found. Two estimators of the indices are considered and, assuming that the studied characteristic of the process is normally distributed and that the target value is equal to the midpoint of a two-sided specification interval, their expected values, variances, and mean square errors are derived. It is shown that studying the properties of the class of indices alone, without taking the properties of its estimators into account, might be misleading.

Place, publisher, year, edition, pages
1995. Vol. 5, no 2, 805-820 p.
Research subject
Mathematical Statistics with special emphasis on Industrial Statistic
URN: urn:nbn:se:ltu:diva-11064Local ID: 9f8dc710-4f92-11db-9592-000ea68e967bOAI: diva2:984013
Godkänd; 1995; 20060905 (evan)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Vännman, Kerstin
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