Which of the following is not true regarding when to select a p, c or u chart:

The process is a complex assembly operation and product quality is measured in terms of the occurrence of nonconformities, successful or unsuccessful product function, and so forth.
Process control is necessary, but measurement data cannot be obtained.
A historical summary of process performance is necessary.
Destructive testing (or such other expensive testing procedures) is required

Answer rating: 100% (QA)

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