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An assembly line is to be designed to operate 7½ hours per day and supply a steady demand of 300 units per day. Here are the tasks and their performance times: a. Draw the precedence d...
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Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of resistors of 1,000 ohms each. To set up the machine and to create...
See AnswerQ: You are the newly appointed assistant administrator at a local hospital,
You are the newly appointed assistant administrator at a local hospital, and your first project is to investigate the quality of the patient meals put out by the food-service department. You conducted...
See AnswerQ: The state and local police departments are trying to analyze crime rates
The state and local police departments are trying to analyze crime rates so they can shift their patrols from decreasing-rate areas to areas where rates are increasing. The city and county have been g...
See AnswerQ: Some citizens complained to city council members that there should be equal
Some citizens complained to city council members that there should be equal protection under the law against the occurrence of crimes. The citizens argued that this equal protection should be interpre...
See AnswerQ: The following table contains the measurements of the key length dimension from
The following table contains the measurements of the key length dimension from a fuel injector. These samples of size five were taken at one-hour intervals. Construct a three-sigma X ¯ c...
See AnswerQ: A company currently using an inspection process in its material receiving
A company currently using an inspection process in its material receiving department is trying to install an overall cost reduction program. One possible reduction is the elimination of one inspectio...
See AnswerQ: A metal fabricator produces connecting rods with an outer diameter that has
A metal fabricator produces connecting rods with an outer diameter that has a 1 ± .01–inch specification. A machine operator takes several sample measurements over time and determines the sample mean...
See AnswerQ: Output from a process contains 0.02 defective unit. Defective
Output from a process contains 0.02 defective unit. Defective units that go undetected into final assemblies cost $25 each to replace. An inspection process, which would detect and remove all defectiv...
See AnswerQ: There is a 3 percent error rate at a specific point in
There is a 3 percent error rate at a specific point in a production process. If an inspector is placed at this point, all the errors can be detected and eliminated. However, the inspector is paid $8 p...
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