Exercise 3: Daily demand for a product of a computer manufacturer is 400,000 units. Thecompany, on average, makes $150 net profit for each computer. The current fill rate is86%. About 70% of their incomplete orders are back-ordered, and the rests are cancelled.The company is considering to improve the fill rate to 90% whose estimated dailyadditional operating cost (e.g.,improving the warehousing and transportation) is$2,000,000. What should be the minimum back-order cost to make this investmentreasonable?

The backorder cost per unit to justify any new investment made to counter the losses (or to increase…

Answered: Exercise 3: Daily demand for a product…

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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A company is known to have 4 request periods in 1 year. In the first quarter year demand amounted to 750, the 2nd quarter was 900, the third quarter was 1500, and for the fourth quarter it was 900. If the company has an initial inventory of 100, the desired final inventory is 150 units, the cost of normal hours is 100 rupiah/unit, the overtime hour fee is 125 rupiah/unit, the cost of sub-contract hours is 150 rupiah/unit, and lastly the cost of inventory is known to be 20 rupiah per unit per period. Here is the table of normal hours, overtime hours and subcontracts. Period Normal Hours Ovetime Hours Subcontracts 1 700 146 500 2 800 146 500 3 900 146 500 4 500 146 500 Please specify:a. Total cost!b. How much is produced per quarter?c. Analyze Your Answers!
a) The average monthly demand requirement = ____units (round to nearest whole number.) B) The total stockout cost = $____(nearest whole number) C) The total inventory carrying cost = $____(nearest whole number) D) The total cost, excluding normal time labor costs, is = $_____(nearest whole number)
Opportunity costs are relevant to which of the following decisions? Whether to accept a special order when capacity is limited Whether to makeor buy a product No Yes No No Yes No Yes Yes
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The Northridge Company tends to keep the inventory low. At the same time, it is important to respond to demand quickly, since a customer who wants a product K is very likely to get one from a competitor if Northridge Company doesn’t have one available immediately. Northridge Company’s current policy to produce the product K is to produce 100 per week, which is the average demand. Even this is a problem, as the production manager has pointed out, since the equipment is also used for other products and the lot size of 300 would be much more efficient. He said he is currently set up the production for product K for the next week and states that he has capacity available to produce 300 at a time next week. The following lists the forecasts and actual customer orders for the next 12 weeks. Week 1 2 3 4 5 6 7 8 9 10 11 12 Forecast 90 120 110 80 85 95 100 110 90 90 100 110 Customer Orders 105 97 93 72 98 72 53 21…
XYZ company has determined that the annual demand for type A material is 20,000 pounds. Salma, who works in her brother's factory, is in charge of purchasing. She estimates that it costs $15 every time an order is placed. This cost includes her wages, the cost of the forms used in placing the order, and so on. Furthermore, she estimates that the cost of carrying one pound in inventory for a year is 0.05 $. Assume that the demand is constant throughout the year. (Note: $ is a dollar sign) a) If we are going to use the EOQ inventory model, mention all the assumptions that are made to validate that model. b) How many pounds of type A material should Huda order (i.e. Q*) at a time if she wishes to minimize total inventory cost? c) How many orders per year would be placed? d) What would the annual ordering cost be? e) What would the average inventory be? f) What would the annual holding cost be? See equations below if needed: Annual Ordering cost Annual hdding: Number of orders placed per…
A new shoe production line is being designed at a cost of $293,000 and operating costs are expected to be $61,000 per year. Planned annual production is 2800 pairs and the price of a pair of shoes is $77. The line's service life is 12 years, the depreciation rate is 20%. Use a 8% annual interest rate for the base case. Using the interval [-20%, -10%, +10%, +20%], perform a present worth sensitivity analysis using a sensitivity graph with respect to the following variables in terms of their impact on the Present worth. a) First Cost b) Operative cost c) Annual Production d) Salvage Value
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1. a) Zoey Enterprises manufactures solar engines for helicopters. Given the fuel savings available, new orders for 125 units have been made by customers requesting credit. The variable cost is $11,400 per unit, and the credit price is $13,000 each. Credit is extended for one period. The required return is 1.9 percent per period. If Zoey Enterprises extends credit, it expects that 30 percent of the customers will be repeat customers and place the same order every period forever, and the remaining customers will place one-time orders. Should credit be extended? 2. b) Now, assume that the probability of default is 15 percent. Should the orders be filled now? Assume the number of repeat customers is affected by the defaults. In other words, 30 percent of the customers who do not default are expected to be repeat customers.
Which of the following problems are not among those hidden when inventory levels are excessively high? A) Inadequate worker motivation B) Engineering design redundancies C) Scrap D) Productive equipment downtime E) Paperwork backlogs
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Exercise 2: The demand per year (D) for product X is 12,100 units. The costs of placing an order (S) are $4.50. The unit cost (C) of the item is $25.00. The maintenance cost (H) per unit per year is 30% of the item's cost. 1. Use the economic order quantity (EOQ) model to determine: *Optimal quantity to order* The expected number of orders*Optimal time between orders*The total annual cost of maintaining that optimal amountNOTE: Show calculations of how you arrived at each amount 2. Answer, what are the potential benefits of using EOQ analysis for inventory management? How can you help businesses strike a balance between inventory holding costs and ordering costs?

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