A plant manager is interested in developing a quality-control program for an assembly line that produces light bulbs. To dci so, the manager considers the quality of the products that come from the line. The light bulbs are packed in boxes of 12, and the line produces several thousand boxes of bulbs per day. To develop baseline data, some of the workers test all the bulbs in 100 boxes. They obtain the following results: No. of Defective Bulbs/Box No. of Boxes 0 68 1 27 J 2 3 3 2