Inventory PolicyWeekly Stochastic Demand, Dfollows N(HD=539,0²D=6724)Given:T=1.5 weeks (inventory period)Lead time: 0.2 weeksStock out Level=alpha=0.10Service Level =1-alpha= 0.90Use from excel: normsinv() tofind ZalphaWhen to OrderROP=?How Much to OrderQ =?

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Answered: Inventory Policy Weekly Stochastic…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Reorder Point Ordering: Average daily demand ( d) is 5 units with a std. dev. (od) of 1 unit. Average lead time ( LT) is 24 days with a std. dev. (OLT) of 1 day. The inventory manager wants to operate within 3 std. deviations (z = 3). Find the reorder point (ROP) and safety stock (S). ROP=141, SS=120 ROP=141, SS=21 ROP=120, SS=21 ROP=21, SS=141
Reorder Point Ordering: Average demand per day () is 25 units, with a std. dev. of (od) 15 units. Lead time (LT) is 49 days. Find demand during lead time (DDL), safety stock (SS) and reorder point (ROP ) for 4-sigma (z = 4). DDL= 500 units, SS = 1225 units, ROP = 1645 units DDL= 1,645 units, SS=420 units, ROP = 1225 units DDL= 1,225 units, SS = 420 units, ROP = 1645 units DDL= 0 units, SS = 1225 units, ROP = 420 units DDL= 420 units, SS = 1645 units, ROP = 420 units
Thomas Kratzer is the purchasing manager for theheadquarters of a large insurance company chain with a centralinventory operation. Thomas’s fastest-moving inventory item hasa demand of 6,000 units per year. The cost of each unit is $100, and the inventory carrying cost is $10 per unit per year. The aver-age ordering cost is $30 per order. It takes about 5 days for an order to arrive, and the demand for 1 week is 120 units. (This is acorporate operation, and there are 250 working days per year.)a) What is the EOQ?b) What is the average inventory if the EOQ is used?c) What is the optimal number of orders per year?d) What is the optimal number of days in between any two orders?e) What is the annual cost of ordering and holding inventory?f ) What is the total annual inventory cost, including the cost ofthe 6,000 units?
Annual demand= 360 units Holding cost per year = 1 $ per unit Ordering cost = $ 100 per order Compute EOQ , total cost(holding and ordering cost),no of order per year and expected time (days) between orders(Assuming a 300-day work ) and what would the actual total holding and ordering costs be if the annual demand was actually higher than estimated i.e 500 units instead of 360 units, but the EOQ established above is used. If demand for an item is 3 units per day, and delivery lead time is 15 days, what would be the re-order point?
Instruction: Answer what is being required. You may compute them manually or use the Excel QM.Pencil number 2 at the campus book-store are sold at a fairly steady rate of $60 per week. It cost the bookstore $12 to initiate an order to its supplier and holding costs are $0.005 per pencil per year.Determine◦ How much is the Annual holding cost?◦ How much is the Annual ordering cost? ◦ What is the total annual inventory cost?If the order lead time is 4 months, determine the reorder point.Please Illustrate the inventory profile graphically.What additional cost would the book-store incur if it orders in batches of 1000?
For fixed order quantity inventory system, which of the following costs is increased when order size (Q) is increased? a) Setup cost b) Ordering cost c) Start-up quality cost d) Insurance cost e) Receiving inspection cost
Just need f. Average weekly demand (52 weeks per year): 71 printers Standard deviation of weekly demand: 19 printers Order lead time: 5 weeks Standard deviation of order lead time: 0 (lead times are constant) Item cost: $170 per printer Cost to place an order: $5 Yearly holding cost per printer: $39 Desired service level during reordering period: 95% (z=1.65)
Walrus Company has the following information available concerning one of its inventory items: Cost of placing an order $30.00 Unit carrying cost per year $3.00 Annual unit demand 6,625 Safety stock 125 Average daily demand 25 Normal lead time in days 10 If there is a delay in shipping the item, approximately how many days can be covered by the safety stock? a.5 days b.110 days c.26 days d.31 days
Explain the graph in Frame “A & B" in the context of inventory management. Frame A: Expected demand and lead time occur 300 Order point + 200 100 Safety stock 10 15 20 25 30 35 40 DAYS Frame B: Actual demand and lead time differ from what was expected 300 4 days 6 days 5 days 7 days Order point + 200 100 Safety stock 10 15 20 25 30 35 40 DAYS UNITS UNITS
Thomas Kratzer is tbe purchasing manager for theheadquarters of a la rge insurance company chain with a centralinventory operation. Thomas's fas test-moving inventory itemhas a demand of 6,000 units per year. The cost of each unit is$ 100, and the inventory carrying cost is $10 per unit per year. The average ordering cost is $30 per order. It takes about 5 days for anorder to arrive, and the demand for I week is 120 units. (This is acorporate operation, and there are 250 working days per year.)a) What is the EOQ?b) What is the average inventory if the EOQ is used?c) What is the optimal number of orders per yea r?d) What is the optimal number of days in between any two orders?e) What is the annual cost of ordering and holding inventory?f) What is the total annual inventory cost, including the cost ofthe 6,000 units?
Given Information Service Level - 95% (z value= 1.6649) Order Cost - $125Order Cycle (weeks) - 4, 5, 6, 7, 8Lead Time (weeks) - 2 weeksOperating Time - 52 weeks Standard deviation = 69.3237 Variable Holding Cost - 12.019% Fixed Holding Cost - 1,659,317.307 COMPUTE FOR ECONOMIC ORDER QUANTITY (EOQ) PER ORDER CYCLE. THANK YOUUUUU
Please do not give solution in image format thanku Regional Supermarket is open 360 days per year. Daily use of cash register tape averages 10 rolls. Usage appears normally distributed with a standard deviation of 2 rolls per day. The cost of ordering tape is $1 per order, and carrying costs are 40 cents per roll a year. Lead-time is three days. a) Ignoring the demand uncertainty (i.e., looking only at average values), find the economic order quantity (EOQ) and the reorder point (ROP). b) Consider now the uncertainty. The order quantity remains the same. If the target is to have a 99% annual service level, what should be the ROP

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Inventory Policy Weekly Stochastic Demand, D follows N(μD=539,0²D=6724) Given: T=1.5 weeks (inventory period) Lead time: 0.2 weeks Stock out Level-alpha= 0.10 Service Level =1-alpha=0.90 Use from excel: normsinv() to find Zalpha When to Order ROP=? How Much to Order Q =?