Exponentially Weighted Moving Average Control Charts for the Process Mean Using Exponential Ratio Type Estimator

This study proposes EWMA-type control charts by considering some auxiliary information. The ratio estimation technique for the mean with ranked set sampling design is used in designing the control structure of the proposed charts. We have developed EWMA control charts using two exponential ratio-typ...

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Bibliographic Details
Main Authors: Hina Khan, Saleh Farooq, Muhammad Aslam, Masood Amjad Khan
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Journal of Probability and Statistics
Online Access:http://dx.doi.org/10.1155/2018/9413939
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Summary:This study proposes EWMA-type control charts by considering some auxiliary information. The ratio estimation technique for the mean with ranked set sampling design is used in designing the control structure of the proposed charts. We have developed EWMA control charts using two exponential ratio-type estimators based on ranked set sampling for the process mean to obtain specific ARLs, being suitable when small process shifts are of interest.
ISSN:1687-952X
1687-9538