Read Case $4\mathrm{.}2,$ Pittsburg lighting, chapter $4,$ page $170.$

Wilson and Tony Green left their boss$$s office, heading for the conference room to discuss the task they were given. The task is to select one of two suppliers of outdoor light bulbs. Ordinarily this would be pretty easy$$just pick the one that offers the best price. But in this case, their boss is planning to provide a warranty on the bulbs that will require the company to replace all defects at no cost to the customer. Thus, product quality is an important consideration. As Melinda and