BASIC PROBLEMS 1. Analyze the EDD and SPT priority rules for average lateness an
ID: 382134 • Letter: B
Question
BASIC PROBLEMS 1. Analyze the EDD and SPT priority rules for average lateness and average flow for the following jobs: Job Process (days) Due (days) 4 5 5 4 If a business wants to reduce inventory by changing to a kanban system. How many containers are needed if daily demand is 1000 units, lead time is 2 days, safety stock is 475 units? day, and container size is If concert seats are priced at $75 each, demand is expected to fill 820 of a 1000 seat auditorium. The variable cost per seat is $10. Using yield management, the price structure has been redone so advance tickets are $65 or $100 at the door. Average advance ticket demand at the new price is expected to be 650, and at-the-door demand is forecasted at 220 tickets. Which is a better option in 3. this example -traditional pricing or using yield management? 4. If each unit of product A is made up of 2 B's and 1 C; and each B is made up of 1 D and 1 E; and each 5. For the next 3 months, forecasted demand is 200 units each and normal production is 170 units at a 6. If a small factory has one daily shift that operates 440 minutes and workers are given two 20-minute C is made up of 2 D's and 1 F, how many D's are needed to assemble 10 A's if there are 2 B's, 1 C and 3 D's in inventory? If lead times for A-F are 1,2,1,3,2,2 respectively in weeks, when does production of D need to start in order for A to ship in week 107 cost of $50/unit. What is the cost of using a chase strategy with overtime at $70/unit? breaks, what is the takt time if daily demand is 50 units?Explanation / Answer
1.
2.
3.
Hence Yield management is better.
4.
A = 2B+ 1C = 2(D+E) + 1 (2D+1F)
10 = 20 B + 10C = 20 D + 20 E + 20 D+ 10 F = 40 D + 20 E + 10 F
so net requirement is 40-3 D = 37 D
A 1= B2+ C1 = (D3+E2) + (D3+F2) lead time
So 10 - 1 -2 - 3 weeks = 4 th week
5.
6.
Eng Block Processing time Flow in Flow out Due Tardiness EDD A 3 0 3 4 0 A B C D B 5 3 8 5 3 Avg flow time 7 C 2 8 10 6 4 WIP 2.5 D 4 10 14 7 7 Avg job lateness 3.5 Makespan 14 Completion 35 Avg Tardiness 3.5 Avg Tardiness 3.25 Eng Block Processing time Flow in Flow out Sch Cust Pick up Early/Late (negative) SPT C 2 0 2 6 0 C A D B A 3 2 5 4 1 Avg flow time 6 D 4 5 9 7 2 WIP 2.142857143 B 5 9 14 5 9 Avg job lateness 3 Makespan 14 Completion 30 Avg Tardiness 3 Avg Tardiness 2Related Questions
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