In statistical process control (SPC),a Type I error occurs if we conclude that the process is:
A) in control when in fact it is not.
B) out of control when in fact it is not.
C) in control when this is really true.
D) out of control when this is really true.
E) None of these.

Question

Quizplus · Accepted Answer

A Type I error in SPC occurs when we incorrectly conclude that the process is out of control, when in fact it is not. This means that we may take unnecessary actions to try to fix the process when it is actually functioning within acceptable limits.

In Statistical Process Control (SPC),a Type I Error Occurs If