FSS, J. Goričar Central Social Sciences Library, Ljubljana (ODKLJ)
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Control charts for skewed distributions : Weibull, gamma, and lognormalKaragöz, Derya ; Hamurkaroğlu, CananIn this paper the control limits of X and R control charts for skewed distributions are obtained by considering the classic, the weighted variance (WV), the weighted standard deviations (WSD) and the ... skewness correction (SC) methods. These methods are compared by using Monte Carlo simulation. Type I risk probabilities of these control charts are compared with respect to different subgroup sizes for skewed distributions which are Weibull, gamma and lognormal. Simulation results show that Type I risk of SC method is less than that of other methods. When the distribution is approximately symmetric, then the type I risks of Shewhart, WV , WSD, and SC X charts are comparable, while the SC R chart has a noticeable smaller Type I risk.Source: Advances in methodology and statistics = Metodološki zvezki. - ISSN 1854-0023 (Vol. 9, no. 2, 2012, str. 95-106)Type of material - article, component partPublish date - 2012Language - englishCOBISS.SI-ID - 31771229
Author
Karagöz, Derya |
Hamurkaroğlu, Canan
Topics
Statistične metode |
Statistical methods |
Statistični modeli |
Statistical models
source: Advances in methodology and statistics = Metodološki zvezki. - ISSN 1854-0023 (Vol. 9, no. 2, 2012, str. 95-106)
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Karagöz, Derya | |
Hamurkaroğlu, Canan |
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