Question

What is a control chart? How is it used? What are the benefits of using control charts? Describe three fundamental principles regarding the statistical basis of control charts and why these principles are important

Answer 1

Control chart represents how the process changes over time. To achieve this data is plotted on the basis of time.

The major benefit of using control charts is they can be used to control the process by improving process control. We can also determine if the process is stable or not. Also, we can predict the range for outcomes

The three fundamental things of control charts are

- Average (central line)

- Upper control limit (upper line)

- Lower control limit (lower line)

These are important as we can predict the stability of the system using these and also we can control the process.