To plot zone limits on any of the control charts discussed in this appendix, open to the initial dialog box for the control chart being developed and do the following:
Click the Scale button. Click the Grid-lines tab. Select the Y major ticks, Y minor ticks, and X major ticks check boxes. Click the OK button to return to the previous dialog box.
Click the Options button for the chart (for example, P Chart Options for the p-chart). Select the S limits tab. In the Display control limits at: edit box, enter 1 2 3 in the edit box. Click the OK button to return to the initial dialog box.
To illustrate how to produce a p-chart, refer to the data of Figure 11.3 on page ...