University of Houston, Downtown: MGT 3332 Final Exam. 100% Pass Rate.

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MGT 3332 Final Exam • Question 1 A company can produce 200 units in an 8 hour shift using 8 workers. If the workers are paid $10/hour and if the products are sold for $24 per unit, what is th... e productivity? • Question 2 Annual demand of a product is 3,000 units. It will cost $30 to place an order, and $6 per unit per year to keep a unit in inventory. If the lead time is 15 days and the desired safety stock is 30 unites, what should be the reorder point? ( 1 year = 300 days) • Question 3 Annual demand of a product is 1,000 units. It will cost $30 to place an order, and $6 per unit per year to keep a unit in inventory. If the order quantity is 100 units, what will be annual cost of ordering? • Question 4 The annual demand is expected to be 600 units. You would like to plan a capacity with 20% cushion. How much annual capacity you should plan for? • Question 5 A company uses EOQ model and decides use order quantity Q= 200 units. Due to uncertainty of lead time, it also keeps a safety stock of 40 units. What will be the average inventory? • Question 6 A forecaster uses weighted moving average with weights .20, .30, and .50. If the demand of March, April and May were 200, 220, 230, what would he forecast demand for June? (round to nearest multiple of 10) • Question 7 In an assembly line, there are three work stations A, B, and C with work content of 3, 5, and 2 minutes, respectively. What will be production rate/hour from this production line? • Question 8 In an assembly line, there are three work stations A, B, C, and D with work content of 3, 5, 2, and 4 minutes, respectively. What will be the efficiency of this production line? • Question 9 We can use Johnson's rule for scheduling if following conditions are satisfied. A. There are only 2 machines. B. All jobs must spend some time at each of 2 machines. C. All jobs must first go Machine 1 and then on Machine 2. Which of the statement is correct. • Question 10 The plant manager wishes to develop a quality control system to ensure they do not produce too many defective products. He takes a sample of 40 units every hour and counts number of defectives. In 5 samples that he has just taken, defectives were 2, 1, 0, 2, and 3. What will be a good estimate for the fraction defective? • Question 11 A company can produce a product 50/day. The demand however is only 20 per day. The manager decides lot size of 1,000 units. The set up cost is $50 and holding cost is $12/unit per year. What will be the average inventory holding cost? (in dollars) • Question 12 If the customers arrive 5 per hour and they are served at the rate of 8 per hour, what is the approximate average number of customers that will wait in line for service? • Question 13 The customers arrive 25 per hour and they take average 10 minutes each of service time. How many minimum servers are needed to make this queuing system stable (steady)? • Question 14 While developing x-bar and R charts, the manager took 10 samples each of size 6. The average of sample means was 3.2. The average range value was 0.6. What will be the value of UCL for the x-bar chart? • Question 15 Jobs A, B, C and D are waiting to be processed by a single worker. He estimates that these jobs will take approximately 2, 3, 5, and 2 hours, respectively. If he schedules them as per SPT rule, what will be the approximate average number of jobs in the system? • Question 16 Jobs A, B, C and D are waiting to be processed. They all first go machine 1 and then on a different machine. It is estimated these jobs will take about 3, 3, 5, 2 hours on the first machine; and 4, 1, 2, 6 hours on the second machine. If the makespan is to minimized which job should be scheduled first on the first machine? • Question 17 If the actual demand of March was 250 units whereas the forecast was 270, what would be the forecast for April if an exponential method is used with alpha = 0.3? • Question 18 Jobs A, B, C and D are waiting to be processed by a single worker. He estimates that these jobs will take approximately 2, 3, 5, and 2 hours, respectively. If he schedules them as per SPT rule, which job will be done last? • Question 19 Annual demand of a product is 4,000 units. It will cost $30 to place an order, and $6 per unit per year to keep a unit in inventory. If the order size is 100 unit, what will be the annual holding cost? • Question 20 While developing x-bar and R charts, the manager took 10 samples each of size 6. The average of sample means was 3.2. The average range value was 0.6. What will be the value of UCL for the R-chart? [Show More]

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