At any rate, control charts are simple, robust tools for understanding process variability. The Four Process States Processes fall into one of four states: 1) the ideal, 2) the threshold, 3) the ...

2. Explain how control charts are used to monitor a process and the concepts that underlie their use (p439). 3. Use and interpret control charts (p442). 1. Obtain 20-25 samples. Compute the ...