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Statistical control chart |
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Friday, 17 November 2006 01:00 |
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A Statistical control chart (Shewhart control chart) is a graphical chart with statistical control limits and plotted values (for some applications in chronological order) of some measured parameter for a series of samples. Use of the charts provides a visual display of the pattern of the data, enabling the early detection of time trends and shifts in level. For maximum usefulness in control, such charts should be plotted in a timely manner (i.e., as soon as the data are available). |
Glossary / Lexicon