Label control chart points to identify them or document causes of special-cause variation.
Activate the analysis report worksheet.
On the Analyse-it ribbon tab, in the
Process Control group, under the
Format heading, click
The analysis task pane Control Chart
Alongside the Label points check box, select:
||Label all points.
||Label only points that are out-of-control.
In the Label drop-down list, select a variable.