Use Stat\Quality Tools\Capability Analysis.
Using Green Belt XL Add-On
Use New Chart\Histogram. (Note: The histogram also may be displayed as an option with the and individual-X control charts.)
An advantage of a histogram is that the process location is clearly identifiable. In Figure F.17, the central tendency of the data is about 75.005. The variation is also clearly distinguishable: We expect most of the data to fall between 75.003 and 75.007. We also can see if the data are bounded or if they have symmetry, such as is evidenced in these data.
If your data are from a symmetric distribution, such as ...