1. Review the section “Statistical Process Control Defined.” Explain how environment and the Five M’s can affect processes used in the following:

a. A hardware store

b. A hospital

c. An accounting firm

d. A newspaper

e. A factory

f. 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.”