Question
Exam 2 lol The Executive chairs are delivered once a year to an upscale furniture store, called The Khan Furniture. The reorder point, without
Exam 2 lol The "Executive" chairs are delivered once a year to an upscale furniture store, called The Khan Furniture. The reorder point, without safety stock, is 200 chairs. Carrying cost is $20 per unit per year, and the cost of a stockout (or lost sale) is $60 per chair. Given the following demand probabilities during the lead time, how much safety stock should be carried? Demand During Lead Time Probability 0.2 100 0.2 200 0.2 300 0.2 400 0.2 The optimal quantity of safety stock which minimizes expected total cost is units (enter your response as a whole number). 2. Great Harvest bakery distributes an average of 1,200 breads per day to local stores and restaurants. This demand is normally distributed with a standard deviation of 100 breads per day. The baking firm who makes the bread requires a 3-day lead time. The manager of Great Harvest expects a 99% service level to satisfy high customer expectations. Refer to the standard normal table for z-values. a) The reorder point = breads (round your response to the nearest whole number). b) The safety stock = breads (round your response to the nearest whole number). 3. a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is (to resolve a tio, use the order in which the jobs were received): Sequence 1 Job 2 3 4 5 The total flow time for the sequence developed using the EDD rule = days (round your response to two decimal places) The percentage utilization for the sequence developed using the EDD rule = rounded to two decimal places). % (enter your response as a percentage jobs (round your The average number of jobs in the system for the sequence developed using the EDD rule response to two decimal places) The average tardiness (job lateness) for the sequence developed using the EDD rule = days (round your response to two decimal places). b) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received) 4. Sequence Job 1 2 At Morgan's Transformer Rebuilding, following jobs (below) are ready for dispatching to a work center. The processing times, date job received, and due dates for the jobs are given below. In what sequence would the jobs be ranked according to the decision rules on the left. Job Date Job Received Due Date Processing (days) A 121 190 20 B 124 210 24 C 117 185 12 D 125 215 22 E 120 220 16 All dates are according to shop calendar days. Today on the manufacturing planning calendar is day 132 Compute all times based on initiating (starting) work on day 132 Best-Appliance makes high-powered industrial strength microwave oven and wants to create an MRP for their oven assembly with a minimum cost possible. Following table show gross requirements of their product for twelve weeks. Develop a Part Period Balancing (PPB) solution and calculate the total relevant costs for the plan. D Wook 1 2 Gross requirements 30 3 4 40 5 6 7 8 9 10 11 12 40 70 20 20 70 40 Also, for this plan the Holding cost = $2 50/unit/week, setup cost $200, lead time = 1 week, beginning inventory = 40 units. Use the table below to develop a PPB solution for MRP (enter your responses as whole numbers). Week Gross requirements 10 11 12 1 2 3 30 4 5 6 7 8 9 40 40 70 20 20 70 40
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