Mean charts and range charts complement one another, one detecting shifts in process average, the other detecting shifts in process dispersion.

Question

Quizplus · Accepted Answer

This statement is true. Mean charts are used to monitor the process average, while range charts are used to monitor process dispersion. When used together, they provide a more comprehensive picture of the process performance and can help identify the source of any process shifts.

Mean Charts and Range Charts Complement One Another, One Detecting