Process Capability Analysis Setup--Aggregated Data - Quick Tab

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

Variables

Click the Variables button to display a variable selection dialog, 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, 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.