6. In a control chart, the quality variable being controlled is represented by the _________ axis (pg. 163)

		x
		y
		z
		none of the above

7. Compared to Six Sigma, lean projects are usually simple and often based on employee suggestions.

True

False

8. There is really no difference between a pareto chart and histogram, according to the authors in chapter 9.

True

False

9. The center line of a control chart represents the average of the quality characteristic being measured.

True

False

10. When statistical quality control evolved service industries were first to adopt it.

True

False