Bob said, "They must not be using quality control in automobile manufacturing. Just look at the J.D. Power data showing that new cars all seem to have defects."
(a) Discuss Bob's assertion, focusing on the concept of variation.
(b) Can you think of processes where zero defects could be attained on a regular basis? Explain.
(c) Can you think of processes where zero defects cannot be attained on a regular basis? Hint: Consider activities like pass completion by a football quarterback, 3-point shots by a college basketball player, or multiple-choice exams taken by a college student.