Statistical process control charts
A) display the measurements on every item being produced
B) display upper and lower limits for process variables or attributes, and signal when a process is no longer in control
C) indicate to the process operator the average outgoing quality of each lot
D) indicate to the operator the true quality of material leaving the process
E) none of the above

Question

Quizplus · Accepted Answer

Statistical process control charts display upper and lower limits for process variables or attributes, and signal when a process is no longer in control. They are used to monitor and control a process to ensure it remains within set parameters and to identify when the process is performing outside of those parameters. The charts do not display measurements on every item being produced, indicate the average outgoing quality, or show the true quality of material leaving the process.

Statistical Process Control Charts