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Upper and Lower Control Limits for Mean under Non-Normal and Correlated Data |
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PP: 45-52 |
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Author(s) |
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Ab Latif Dar,
J. R. Singh,
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Abstract |
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| For conducting the design of control charts, one usually assumes the measurements within a subgroup are
independently and normally distributed. However, this assumption may not be tenable. In this paper, an attempt has been
made to develop the control limits for mean chart under non-normal and correlated data by making use of an Edgeworth
series. Control limits are calculated for different values of correlation coefficient and standardized cumulants. |
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