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Problem 1: Line Balancing First shift employees at Generac work from 6am to 2pm Monday through Friday. Everyone on the assembly line is allowed a 30 minute lunch and two 20 minute breaks, but other cross-trained associates cover lunches and breaks for the associates on the assembly line so the line doesn’t stop. The processes of the assembly line have the following dependencies: Task Predecessor Average Time (sec) A none 60 B A 80 C A 20 D A 40 E B 30 F D 70 G E, C 50 H F, G 10 The Plant Manager needs first shift to achieve an output of 300 generators. a) Compute the Takt time for the line. b) What is the theoretical minimum number of workstations? c) Draw the precedence diagram, and then create work stations. Follow the “largest eligible task” heuristic rule to assign these tasks to the work stations. Show which tasks are assigned to each workstation. d) Compute the efficiency and percent idle time for the system. e) What is the maximum output that could be achieved by a single assembly line in 8 hours?
Problem 2: Line Balancing (8 points) Your product has the following tasks and predecessors. Task Predecessor Average Time (sec) A none 40 B none 60 C A 30 D C 40 E B, D 30 F E 30 a) Use a takt time of 120 seconds and follow the “most following tasks” heuristic rule to assign these tasks to the work stations. Show which tasks are assigned to each workstations. b) Compute the efficiency and percent idle time for the system. Problem 3: Supplier Selection Your sourcing department has received bids from three suppliers shown below. PERFORMANCE DIMENSION IMPORTANCE Supplier 1 Supplier 2 Supplier 3 On Time Delivery (% on time) 0.40 98% 94% 93% Financial Stability (rating) 0.20 BBB AAA AA Cost ($/unit) 0.40 $10.75/unit $10.35/unit $9.99/unit a) Score each supplier‘s bid using the following scale. On Time Delivery Financial Stability Cost Range Score Rating Score Range Score <90% 1 Lower than BBB 1 >$12.00 per unit 1 91%-93% 2 BBB 2 $10.50-$11.99 per unit 2 94%-96% 3 A 3 $10.00-$10.49 per unit 3 97%-98% 4 AA 4 $9.50-9.99 per unit 4 99%+ 5 AAA 5 <$9.50 per unit 5 b) Calculate the weighted average score for each supplier.
Analyze the trade-off between overtime costs and inventory costs.
Assume you are working for a company that sells music online. The marketing department would like to send e-mails to customers who have purchased music from the Web site. These e-mails would use information about the genres of music customers have p..
Identify differences between them from a resource perspective also the industry analysis/positioning perspective. Explain how do you think the identified key resources support also/or contradict the suggestions you made for Coca-Cola in week 1.
A relationship between cash receipt and customer for an enterprise has cardinalities (0,1) cash receipt – (0,N) customer. The enterprise creates a cash receipt table and a customer table to represent the entities. To represent the relationship, the e..
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Assume that the objective function coefficient for X remains 8, but the objective function coefficient for Y changes from12 to 6. Does the optimal solution change?Use the graphical solution procedure to find the new optimal solution.
The lifetime of a battery is normally distributed with a mean life of 40 hours and a standard deviation of 1.2 hours. Find the probability to a z-value of 4.16 in 0.9998.
Many organizations face remaining in a transactional purchasing environment for one reason or another. What advantages are presented with a transactional relationship with suppliers
If it were necessary to crash to 250 or 240 days, explain how would Hill do so also at illustrate what costs. As noted in the case, Assume which optimistic time estimates can be used as crash times.
Consider the following linear programming problem: Min: 6X1 + 3X2 Subject to: 2X1 + 4X2 >=400 4X1 + 3X2 >=400 X1, X2 >=0 This problem : Select one: a. Has a unique optimal solution b. Has an infeasible region c. Has an unbounded solution d. Has alter..
What is the general purpose of the technique. How does or should this help operations in general
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