The Analysis Of Main Effects (ANOME) chart has a reference line at the overall average and plots the averages of the measurements by each operator. The chart includes decision limits that test for operator bias. The decision limits use the following formulas:
Term | Description |
---|---|
![]() | the overall mean of the measurements |
![]() | the average range |
![]() | The positive, two-sided critical value from the t distribution for ![]() ![]() |
![]() | The unbiasing constant from Appendix C 1. When looking for this value, use g = (# of parts) * (# of operators) and m = (# of replicates). |
n | the number of measurements by one operator |