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operation management

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Operations Management Chapter 1 Solved Problem 1 Student tuition at Boehring University is $100 per semester credit hour. The state supplements school revenue by matching student tuition dollar for dollar. Average class size for a typical three-credit course is 50 students. Labor cost are $4000 per class, materials costs are $20 per student per class, and overhead costs are $25000 per class. a. What is the multifactor productivity ratio for this course process? b. If instructors work an average of 14 hours per week for 16 weeks for each three-credit class of 50 students, what is the labor productivity ratio? c. Solved problem 2 Natalie Attired makes fashionable garments. During a particular week employees worked 360 hours to produce a …show more content…

Because of demand uncertainties, the operations manager obtained three demand forecasts(pessimistic, expexted, and optimistic). The manager believes that a 20 percent capacity cushion is best. a. What is the minimum number of machines needed? The experted number? The maximum number b. If the operation currently has three machines and the manager is willing to expand capacity by 20 percent through short-term options in the event that the optimistic demand occurs, what is the capacity gap? Table 6.2 CAPACITY INFORMATION FOR AUTOMOTIVE BRAKE SUPPLIER Time Standard Demand forcast Component Processing (hr/wait) Setup (hr/lot) Lot Size (unites/lot) Pessimistic Expected optimistic A 0.05 1.0 60 15000 18000 25000 B 0.20 4.5 80 10000 13000 17000 C 0.05 8.2 120 17000 25000 40000 Problem 6 OM Explorer Up, Up, and Away is a producer of kites and wind socks. Relevant data on a bottleneck operation in the shop for the upcoming fiscal year are given in the following table; Item Kites Wind socks Demand forecast 30000 units/year 12000 unit/year Lot size 20 units 70 units Standard processing time 0.3 hour/unit 1.0 hour/unit Standard setup time 3.0 hours/lot 4.0 hour/lot The shop works two shifts per day, eight hours per shift, 200 days per year. There currently are four machines, and a 25 percent capacity cushion is desired. How many machines should be purchased to meet the upcoming year’s demand

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