Discussion Questions

1.

What is a stable process? Can a bar chart be used to check for stability? Why or why not? If not, how would you graphically check for stability?

2.

Explain what a moving average is and what it is used for.

3.

What is a stratified plot? What is it used for?

4.

Name two graphical tools used for identifying possible causes of process variation.

5.

What is brainstorming? How can it help in identifying possible causes of process variation?

6.

What six categories might form the main branches of an Ishikawa diagram?