Review the section "Statistical Process Control Defined." Explain how environment and the Five M's can affect processes used in the following:

A hardware store

A hospital

An accounting firm

A newspaper

A factory

A new-car dealership

2. Explain the relationship that exists between the histogram and the control chart.

3. Contrast the histogram's characteristic of representing a "snapshot" of a process with a control chart.

4. Defend the statement that the operator of the process should be the owner and data plotter of the control chart, as opposed to a person from quality assurance or engineering, for example.

5. Comment on the significance of this statement: "Control chart parameters must be statistically derived and cannot simply be specifications or some arbitrary values that are based on production expectations."

• Summary and recommendations: summarize, what is the value and how could you use the model in business, school or life.