# X-Bar Tab

The X-Bar tab displays x-bar graphs of the selected programs. The chart plots the process (mean over time) for the groups. In the X-Bar tab the results are grouped by the Group size (2-15) value and presented as plots.

Plots will be marked red if they:

- are outside the upper control limit (UCL) or lower control limit (LCL).

- show 7 or more consecutive increasing or decreasing plots.

- show 7 or more consecutive plots above or below average.