Once the R chart is in control, then review the X-bar chart and interpret the points against the control limits and the Western Electric Rules. All the points should be interpreted against control ...

We also cover the equations and constants for the X-bar and R (Range) chart, and work an example of this important control chart. Industry 4.0 Academy Disclaimer The courses offered in this catalog ...

Figure F Luke’s bar represents only one sale; he doesn’t have a low and high value, as this Excel chart clearly shows. The green and red gradient in the bars is also subjective.

You can also choose a 3-D chart to add some aesthetic texture to the graph. These different graph options are relatively easy to create in Excel when you're looking to visually represent a data range.

Control chart techniques have been widely used in industries to monitor a process in quality improvement. Whenever we deal with variables data, we usually employ a combination of X-bar chart and R ...