D. External failures
(M) 14. Dr. Juran’s cost of quality model suggests that complete elimination of all defects may
not be cost-effective.
(M) 15. The cause and effect chart is used to _____.
D. Decide upon a course of action
(M) 16. A Pareto diagram is used to identify and prioritize quality problems.
(H) 17. The primary use of control charts is to:
D. All of the above
(E) 18. If the upper and lower control limits of a process are set at plus or minus three sigma,
then what percent of the units produced are expected to satisfy the customer’s
requirements?
(M) 19. The fact that random variation is always present in any process is called:
D. Control limit variability
20. Which of the following is not generally a special cause variability?