Moving Range chart calculations

Moving Range chart control limits are calculated as follows:

NOTE: Moving Range chart analysis is usually performed on individual data (the default subgroup size is 1). However, if you enter a bigger subgroup size, subgroup averages are treated as individual data.

Data Plot Items

• Moving Range

• Lower Control Limit (LCL) (optional)

• Upper Control Limit (UCL) (optional)

• Warning lines (optional)

Descriptive Statistics

• Lower Control Limit (LCL)

• Upper Control Limit (UCL)

• Center Line (CL)

• Moving Ranges

See Also

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