User talk:Vleonte

Do you have to perform 100% inspection to detemine the PPM (parts per million)of defective items from a lot? Can that be extrapolated from the sample? For example the lot size is 10,000 pcs. and the sample size for inspection is 200 pcs. If you have 8 pcs. that are nonconforming, is it fair to say that the PPM is 40,000 {8/200)x 1,000,000}?

Thank you,

ValentinVleonte (talk) 15:33, 7 August 2008 (UTC)