Question

Statistical process control charts:

A. display upper and lower limits for process variables or attributes and signal when a process is no longer in control.

B. display the measurements on every item being produced.

C. are a graphic way of classifying problems by their level of importance, often referred to as the 80-20 rule.

D. indicate to the process operator the average outgoing quality of each lot.

E. indicate to the operator the true quality of material leaving the process.

Answer 1