Hi, we are trying to increase our lot size from 30,000 units to 72,000 units for one of our class IIb Medical device. From Quality standpoint, I am considering the change in sampling size with the same inspection level and AQL.
Do we also need a validation for increase in lot size ?
Any insights from quality are greatly appreciated.
It is possible to verify the sample size before and after, the larger the lot size, the lower the sample size
I don't think you have a problem in keeping about the same sample size. It does depend on how you take the sample. You might look at Schaefer et al Elementary Survey Sampling and especially at sampling size calculation
Book is available at the z-library.. Best wishes David Booth
Notice the problem with Saed reasoning the biggest Population would have a sample size approaching zero. Best wishes David Booth Suggest you see my previous post.. .
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