When data are collected in subgroups, it’s easy to understand how the variation can be calculated within each of the subgroups based the subgroup range or the subgroup standard deviation. When data is not collected in subgroups (so the subgroup size is 1), it may be a little less intuitive to understand how within-subgroup standard deviation is calculated. How does Minitab Statistical Softwarecalcu... Continue Reading
Thursday, July 2, 2015
How Is Cpk Calculated When the Subgroup Size Is 1?
When data are collected in subgroups, it’s easy to understand how the variation can be calculated within each of the subgroups based the subgroup range or the subgroup standard deviation. When data is not collected in subgroups (so the subgroup size is 1), it may be a little less intuitive to understand how within-subgroup standard deviation is calculated. How does Minitab Statistical Softwarecalcu... Continue Reading
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