Below is a table of control chart constants used to calculate Control Limits. The constants are used as follows:
- D3 and D4 are used in X-MR (I-MR) charts
- A2, D3, and D4 are used in x-bar and R charts
- A3, B3, and B4 are used in x-bar and s charts
Below is a table of control chart constants used to calculate Control Limits. The constants are used as follows:
