Publication date: 05/24/2021

Use this outline to specify which moving range statistic is used in the within sigma estimate when subgrouping is not used.

Note: When you specify subgrouping and click Calculate Between-and-Within Capability, use the Moving Range Options outline to specify which moving range statistic is used in the between sigma estimate.

Average of Moving Range

Uses the mean of the moving ranges to estimate sigma. The moving range is the difference between two consecutive points.

Median of Moving Range

Uses the median of the moving ranges to estimate sigma.

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