• April 13th, 2016


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Chapter 2 Homework


Question 2-52. Develop a fishbone diagram for the possible causes of your car not starting.


Problem 2.5. The Omega Shoe Company manufactures a number of different styles of athletic shoes. Its biggest seller is the X-Pacer running shoe. In 2008 Omega implemented a quality-management program. The company’s shoe production for the past three years and manufacturing costs are as follows.


  2008 2009 2010
Units produced/input   32,000  34,600  35,500
Manufacturing cost $278,000 291,000 305,000
Percent good quality      78%      83%      90%

Only one-quarter of the defective shoes can be reworked, at a cost of $2 apiece. Compute the manufacturing cost per good product for each of the three years and indicate the annual percentage increase or decrease resulting from the quality-management program.


Problem 2-6. The Colonial House Furniture Company manufactures four-drawer oak filing cabinets in six stages. In the first stage, the boards forming the walls of the cabinet are cut; in the second stage, the front drawer panels are woodworked; in the third stage, the boards are sanded and finished; in the fourth stage, the boards are cleaned, stained, and painted with a clear finish; in the fifth stage, the hardware for pulls, runners, and fittings is installed; and in the final stage, the cabinets are assembled. Inspection occurs at each stage of the process, and the average percentages of good-quality units are as follows.


Stage Average Percentage Good Quality
1 87%
2 91%
3 94%
4 93%
5 93%
6 96%

The cabinets are produced in weekly production runs with a product input for 300 units.

a. Determine the weekly product yield of good-quality cabinets.
b. What would weekly product input have to be in order to achieve a final weekly product yield of 300 cabinets?

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