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sample size questions

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jumacao

Chemical
Joined
Dec 26, 2008
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41
If I have a defect witha frequency of 1 each 1500. How I test a new system , that eliminates that defects, to shows 0 defects? How many samples?
 
there's no such thing as 0 defects, no matter how many samples you take. It's up to you to determine how many you will allow and how severely it has to be tested. For that I would advise you read up on statistical math, because it's pretty hard to explain this in a forum post.

NX 7.5
Teamcenter 8
 
How do you know you have a current defect rate of 1 in 1500?
 
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