Once you have defined the variable's general characteristics and collection methods, you are ready to set control limits for your XBar-R or XBar-S chart sets in the Variable Quality Characteristics Properties dialog box.

Option 3.4.1	Control limits for a variable.
Option 3.4.2	SPC auto-recalculation feature.
Option 3.4.3	Control limits for (specific) values.
Option 3.4.4	Points Control limits.
Option 3.4.5	Auto-recalculation control limits.

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Step 3. Add and configure variable quality characteristics.

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