Big Idea$$

$1.$ What is Statistical Process Control $($SPC$)$

Using Statistical Process Control, how do we know if a process is performing as expected $($In$-$Control$)$ or not? $($Pick the most complete answer$)$

Group of answer choices

We calculate statistics

We use samples, calculate statistics and control limits$,$ and look for signals that indicate an unstable process and point us to potential causes

We calculate control limits

We use data samples