Variable Control Chart Results

After selecting an analysis from the Quality Control Charts for Variable Lists Startup Panel and selecting the appropriate options in the Defining Variables for . . . dialog box, click the OK button to display the Results dialog box, which contains four tabs: X-bar (or X), R/S, Process Capability, and Display. With minor differences, these tabs are very similar regardless of whether an R or S chart is chosen as the variability chart and regardless of whether an X-bar or Moving Average chart is created.

Current Variable and Chart

At the top of the dialog box is a table that lists the variables for the current chart analysis. Both the variable numbers and variable names, as well as summary statistics are reported. Note that for variable control charts, the Sigma value that is reported is computed according to the chosen type of variability chart, i.e., either from the ranges or the standard deviations. All specifications for the charts (control limits, center lines, etc.) that can be selected on the various tabs of the Results dialog box pertain to the currently highlighted variable (in the list of variables displayed at the top of the dialog box).

Summary

Click the Summary button to compute the respective charts and results summaries requested on the Display tab. By default, the standard charts will be reported.

Cancel

Click the Cancel button to close the dialog box and return the variable specifications dialog.

Options

Click the Options button to display the Options menu.