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Showing 1 to 1 of 1 for “"Control Chart, Average Run Length, Non-Normality, Transformation, Process Improvement"”.
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A study on improving the performance of control charts under non-normal distributions
Generally, for constructing traditional control charts there are the two assumptions: that sample observations are statistically independent, and that the monitoring statistic follows a normal distribution. While the normality assumption is invalid in many cases, the traditional 3-sigma limits may …