Process Capability Analysis Setup--Aggregated Data - Quick Tab

Select the Quick tab of the Process Capability Analysis Setup--Aggregated Data dialog box to access the options described here.

Variables

Click the Variables button to display a variable selection dialog box, in which you select:

  1. A variable containing the sample means
  2. A variable containing the index of within-sample variability (such as, range, standard deviation, or variance)
  3. A variable containing the sample sizes
Note: this is the same way in which aggregated data files can be arranged for Quality Control.

Process specs

Click the Process specs button to display the Enter/edit specification limits dialog box, in which you specify the process (engineering) specification limits from which the capability indices (such as Cpk) and performance indices (such as Ppk) will be calculated.