| Автор | Tuprah, Kwami |
| Автор | Ncube, Matoteng |
| Дата выпуска | 1987 |
| dc.description | The problem of detecting shifts in the process variability has not received as much attention as that of detecting shifts in the process mean of continuous production processes, even though it is important in the context of quality control. We examine and compare shewhart s (1931) and Page s (1963) procedures for detecting shifts in variability based on the sample range (R-charts), with procedures based on the sample standard deviation (S-charts). The underlying process control variables are assumed to be normally distributed. We also compare Cumulative Sum (CUSUM) procedures using sample ranges and sample standard deviations. We shall show by average run length (ARL) comparisons that procedures based on the sample standard deviation detect shifts from target value more quickly than procedures based on the sample range. |
| Формат | application.pdf |
| Издатель | Marcel Dekker, Inc. |
| Копирайт | Copyright Taylor and Francis Group, LLC |
| Тема | Shewhart Control Charts |
| Тема | CUSUM |
| Тема | Average Run Length |
| Название | A Comparison of dispersion quality control charts |
| Тип | research-article |
| DOI | 10.1080/07474948708836122 |
| Electronic ISSN | 1532-4176 |
| Print ISSN | 0747-4946 |
| Журнал | Sequential Analysis |
| Том | 6 |
| Первая страница | 155 |
| Последняя страница | 163 |
| Аффилиация | Tuprah, Kwami; Department of Mathematics and Computer Science, Fayetteville State University |
| Аффилиация | Ncube, Matoteng; Department of Mathematics and Statistics, University of West Florida |
| Выпуск | 2 |
| Библиографическая ссылка | Alt, F.B. 1985. “Multivariate Control Charts”. In The Encyclopedia of Statistical Sciences, Edited by: Kotz, S. and Johnson, N.L. New York: John Wiley. |
| Библиографическая ссылка | Brook, D. and Evans, D.A. 1972. An Approach to the Probability Distribution of CUSUM Run Length. Biometrika, 59: 539–549. |
| Библиографическая ссылка | Duncan, A.J. 1974. Quality Control and Industrial Statistics, Illinois: Homewood. Richard D Irvin Inc,PP. 445 |
| Библиографическая ссылка | Ewan, W.D. and Kemp, K.W. 1960. sampling Inspection of Continuous Processes with no Autocorrelation Between Successive Results. Biometrika, 47: 363–380. |
| Библиографическая ссылка | Page, E.S. 1955. Control charts with warning lines". Biometrika, 47: 243–257. |
| Библиографическая ссылка | Page, E.S. 1963. Controlling the Standard Deviation by Cusums and Warning Lines. Technometrics, 5: 307–315. |
| Библиографическая ссылка | Shewhart, A.W. 1931. Economic Control of Quality of Manufactured Product, New York: Van Nostrand. |
