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Finding active factors from unreplicated fractional factorials utilizing the total time on test (TTT) technique
Luleå University of Technology.
Division of Quality Technology and Management, Linköping University, SE-58183 Linköping, Sweden.
1999 (English)In: Quality and Reliability Engineering International, ISSN 0748-8017, E-ISSN 1099-1638, Vol. 15, no 3, p. 191-203Article in journal (Refereed) Published
Abstract [en]

Much research has been devoted to improving the process of identifying active factors from designed experiments. Generally, the proposed methods rely on an estimate of the experimental error. Here we present a method based on the TTT (total time on test) plot, where the scaled TTT transform enables an evaluation of the contrasts independently of the experimental error. The method can be separated into two parts. The first part consists of a transformed TTT plot for a visual evaluation of data. The second part is more formal and utilizes the cumulative TTT statistic for testing the significance of contrasts. A simulation study shows the power of the method compared with competing methods. Five data sets are used to show that the conclusions drawn are consistent with those obtained using other suggested methods.

Place, publisher, year, edition, pages
1999. Vol. 15, no 3, p. 191-203
National Category
Reliability and Maintenance
Research subject
Quality Technology & Management
Identifiers
URN: urn:nbn:se:ltu:diva-2674DOI: 10.1002/(SICI)1099-1638(199905/06)15:3<191::AID-QRE243>3.0.CO;2-VScopus ID: 2-s2.0-0347129699Local ID: 0542f760-f3d5-11db-ac9f-000ea68e967bOAI: oai:DiVA.org:ltu-2674DiVA, id: diva2:975527
Note

Godkänd; 1999; 20070426 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-05-18Bibliographically approved

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Sandvik Wiklund, Pia

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