In Reply to Parent Post by 1winnyAK
My boss thinks our AQL is 0.010, I differ on that but I could be wrong too.
AQL is the proportion of defectives that you accept with a given probability. Usually, that probability is 95%.
Suppose your lot size is 500, then you inspect 25 samples (5%, you said). If you reject the lot when you find at least 1 defect, you have this plan:
grey: Pa (probability of acceptance)
orange: AOQ (average outgoing quality)
green: ATI (average total inspection)
abscissae: proportion of defectives
please, take a look here:
Your AQL (considering Pa = 95%) is 0.2%.
Let me say that your plan is very "strange".