We have an operation that torque's an assembly together. The machine is equipped with a nutrunner torque wrench which monitors and collect the torque readings. We are being asked by our customer to provide R&R results from this process. In the past, we have just supplied the calibration cert, and that has been sufficient, but times are a-chang'in. With torque being a non-replicating feature, we are strugling with which approach is "acceptable" for evaluation.
Based on other reading from this site, the most consistent suggestion has been Nested ANOVA. I consider myself to be an above average statistician, but must confess, I don't have the slightest ideas how to preform this study. Can anyone offer some help? I have minitab, which has this feature. I just need help in organizing the study and collecting the correct data.
Has anyone found what they would consider to be the "acceptable" method for this type of study? Maybe this is one that needs to be addressed with AIAG and singled out for a clarification from the standard body.
Any comments are appreciated.