It depends to the acceptable risk level in your company. Usually AFR=10 is acceptable in most companies.
AQL - acceptable quality level
It is conventionally 5% (or lower) but there is no good reason for that level.
There can be no set value. An acceptable level of sampling error for a company making high precision machine parts is likely to be very different from the sampling error for household incomes, for example.
You study, understand and practice - as with any other subject.
The answer is a Threshold Value
The pH level of the substance is low, indicating that it is acidic.
The substance has a low pH level, indicating that it is acidic.
A decision based on what constitutes an acceptable level of risk
The "acceptable noise level" will depend on your specific needs! What is "acceptable" in one situation, may be utterly unacceptable in another.
It depends to the acceptable risk level in your company. Usually AFR=10 is acceptable in most companies.
Couple percents.
AQL - acceptable quality level
40-45db
It tries to attain an acceptable level of veracity.
be repeated until performace is at an acceptable level
one percent