For the sake of argument, given:
1. Let's say the limit I'm testing to is 50 dBuV.
3. Measurement error is say +/- 3 dB, so my tolerance is 53 dB to 47 dB.
2. I test 10 products against that limit.
4. 8 products test well below 47 dB.
Therefore I'm absolutely sure thosee 8 do indeed pass.
Several questions ...
1. Specifically who came up with this criteria?
2. Why did they pick 80 percent confidence?
3. What does 80 percent confidence mean?
4. Given the situation above, exactly what would one measure to be 70
percent
or 80 percent or 90 percent confident for the remaining 2 products?
Regards, Doug McKean
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