The University of Miami bookstore stocks textbooks in preparation for sales each semester. It normally relies on departmental forecasts and preregistration records to determine how many copies of a text are needed. Preregistration shows 85 operations management studentsenrolled, but bookstore manager Vaidy Jayaraman has second thoughts, based on his intuition and some historical evidence. Vaidy believes that the distribution of sales may range from 65 to 85 units, according to the following probability model:DemandProbability650.10Stock700.3065This textbook costs the bookstore $82 and sells for $112. Any unsold copies can be returned to the publisher, less a restocking fee and shipping, for a net refund of $30.a) Based on the given information, Vaidy's conditional profits table for the bookstore is:65p=0.10750.2070p=0.30800.10Demand75p=0.2080p = 0.1085p=0.30850.30

Sales Price = 112 Cost Price = 82 Profit = Sales Price - Cost Price = 112-82 = 30 Refund of…

Answered: Demand Probability 65 0.10 Stock 70…

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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Q3. Suppose that a publishing company periodically replenish its supply of paper stock. The paper comes in large rolls and that the printer uses 90 rolls per quarterly. The cost of one roll paper is OMR 150. The cost of replenishment is OMR 10 per order. The cost of keeping the paper on hand, including rent for space occupied, insurance, and interest on the capital tied up is 10 percent per roll per year. Calculate: 1)The EOQ. 2)No. of orders in a year, and 3)Time between two successive orders 4)Average yearly cost of Inventory 4)Total inventory cost 5)Total Cost
2) Daily demand for a product is normally distributed with a mean of 100 and a standard deviation of 12. The lead time is normally distributed with a mean of 5 days and a standard deviation of 1.5 days. a) What is the ROP to satisfy a %90 probability of not stocking out? b) What is the safety stock? c) What is the probability of stocking out if the manager has decided not to keep any safety stock? What is the Z value, and what is the probability?
Suppose that a publishing company periodically replenish its supply of paper stock. The paper comes in large rolls and that the printer uses 60 rolls per bi-month. The cost of one roll paper is OMR 150. The cost of replenishment is OMR 10 per order. The cost of keeping the paper on hand, including rent for space occupied, insurance, and interest on the capital tied up is 10 percent per roll per year. Calculate: The EOQ. No. of orders in a year, and Time between two successive orders Average yearly cost of Inventory Total inventory cost Total Cost
5. An insurer charges a loading of 30% on its policies with limit $500,000, anda loading of 33% on its policies with limit $1,000,000. It purchases stoploss reinsurance of $500,000 over $500,000. The cost of this reinsurance is22% of total premiums. What is the reinsurer’s loading on the reinsurancepolicy?
Q3
An apartment complex has a vacancy rate of 5%. If the apartment's PG is $450,000, what is the apartment's vacancy cost? $32,000 $22.500 S2.050 $47,500
S5. Account
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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!
Solve the newsperson problem. Probability 0.15 0.16 0.18 0.18 0.14 0.19 Value 1 2 m 4 5 6 Purchase cost c Selling price p Salvage value v 222 20 28 15 What is the optimal order quantity?
In the last 12 months the quantities shown inTable 1 of light vehicles of a brand "R" were sold in the national territory.The selling price of each R vehicle is 12590€. The production cost(including raw material cost) of one is 7730€. The company usesown transportation to transport the vehicles worth 420€, andgiven the distance to the factory, takes on average, 8days, with a standard deviation of 2 days. Storage until saleis estimated at 150€/unit.year. The companyfinancial loans at an annual rate of 2.2%. Consider that ayear has 264 working days.a) Determine the economic order quantity.b) Consider that a service level of 85% (Z=1.036) is to be ensured using a continuous reviewinventory management policy of continuous review. Determine:i. The order point.ii. The economic order quantity considering stock-outs. Month Sales Month Sales 1 2235 7 3078 2 3206 8 2366 3 4298 9 1966 4 3309 10 2149 5 3640 11 2387 6 4038 12 2492
A manufacturing company faces an uncertain demand for its product at an average of 10,000 units per year. Selling price of the product is IDR. 1.500.000,-. The cost of holding per unit per year is estimated at IDR 350.000,-. Profit of the product is IDR. 300,000,- per unit. If the company could not meet the demand, then the profit will be lost. Ordering lead time is approximately 7 days, and the demand during lead time follows a uniform distribution of 30 to 200 units. a.Determine order quantity and reorder points to minimise the total cost. b. Determine the review period and maximum inventory to minimise the total cost C. Calculate the total cost for item a and b based on the your iteration on the data

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