Re: How do you calculate an AQL Confidence Level?
If I understand correctly then, you would have to use each Sample Size Code Letter on its own merit, correct? Example:
I have a team of 8 personnel doing a task to the same work instruction/ performance standard. I want to do a sample size of those 8 personnel. As an industry norm, I have decided to use GIL 2, w/ an AQL of 2.5. GIL 2 says use Sample Size Code Letter A. Using Single, Normal chart, actually evaluate 2 personnel. 2.5 AQL says accept the performance of the team if both operators are complying with requirements and reject (fail the team) if one of those operators is not complying with instructions (fails). For management, I can tell them we have a 90% Confidence Level that evaluations will only miss 2.11 non conformances out of every 100 observations (instruction requirements/ checklist items) or a 90% Confidence Level that we will accept team performance 97.91% of the time. (No 2.5 AQL in tables for A and B, go to Table X-C-1, 90% Pa (loosely a 90% Confidence Level). Is this correct?