The management of Hartman Company is trying to determine the amount of each oftwo products to produce over the coming planning period. The following information concernslabor availability, labor utilization, and product profitability:DepartmentABCProfit contribution/unitLabor-Hours Required (hours/unit)Product 1Product 2 Hours Available0.800.300.30$300.400.100.10$151004060Develop and solve a linear programming model to determine the optimal production quantitiesof products 1 and 2.

Linear programming (LP) is a mathematical optimization technique that helps solve problems where an…

Answered: Develop and solve a linear programming…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter9: Decision Making Under Uncertainty

Section: Chapter Questions

Problem 46P

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The Tinkan Company produces one-pound cans for the Canadian salmon industry. Each year the salmon spawn during a 24-hour period and must be canned immediately. Tinkan has the following agreement with the salmon industry. The company can deliver as many cans as it chooses. Then the salmon are caught. For each can by which Tinkan falls short of the salmon industrys needs, the company pays the industry a 2 penalty. Cans cost Tinkan 1 to produce and are sold by Tinkan for 2 per can. If any cans are left over, they are returned to Tinkan and the company reimburses the industry 2 for each extra can. These extra cans are put in storage for next year. Each year a can is held in storage, a carrying cost equal to 20% of the cans production cost is incurred. It is well known that the number of salmon harvested during a year is strongly related to the number of salmon harvested the previous year. In fact, using past data, Tinkan estimates that the harvest size in year t, Ht (measured in the number of cans required), is related to the harvest size in the previous year, Ht1, by the equation Ht = Ht1et where et is normally distributed with mean 1.02 and standard deviation 0.10. Tinkan plans to use the following production strategy. For some value of x, it produces enough cans at the beginning of year t to bring its inventory up to x+Ht, where Ht is the predicted harvest size in year t. Then it delivers these cans to the salmon industry. For example, if it uses x = 100,000, the predicted harvest size is 500,000 cans, and 80,000 cans are already in inventory, then Tinkan produces and delivers 520,000 cans. Given that the harvest size for the previous year was 550,000 cans, use simulation to help Tinkan develop a production strategy that maximizes its expected profit over the next 20 years. Assume that the company begins year 1 with an initial inventory of 300,000 cans.
Scenario 3 Ben Gibson, the purchasing manager at Coastal Products, was reviewing purchasing expenditures for packaging materials with Jeff Joyner. Ben was particularly disturbed about the amount spent on corrugated boxes purchased from Southeastern Corrugated. Ben said, I dont like the salesman from that company. He comes around here acting like he owns the place. He loves to tell us about his fancy car, house, and vacations. It seems to me he must be making too much money off of us! Jeff responded that he heard Southeastern Corrugated was going to ask for a price increase to cover the rising costs of raw material paper stock. Jeff further stated that Southeastern would probably ask for more than what was justified simply from rising paper stock costs. After the meeting, Ben decided he had heard enough. After all, he prided himself on being a results-oriented manager. There was no way he was going to allow that salesman to keep taking advantage of Coastal Products. Ben called Jeff and told him it was time to rebid the corrugated contract before Southeastern came in with a price increase request. Who did Jeff know that might be interested in the business? Jeff replied he had several companies in mind to include in the bidding process. These companies would surely come in at a lower price, partly because they used lower-grade boxes that would probably work well enough in Coastal Products process. Jeff also explained that these suppliers were not serious contenders for the business. Their purpose was to create competition with the bids. Ben told Jeff to make sure that Southeastern was well aware that these new suppliers were bidding on the contract. He also said to make sure the suppliers knew that price was going to be the determining factor in this quote, because he considered corrugated boxes to be a standard industry item. Is Ben Gibson acting legally? Is he acting ethically? Why or why not?
Scenario 3 Ben Gibson, the purchasing manager at Coastal Products, was reviewing purchasing expenditures for packaging materials with Jeff Joyner. Ben was particularly disturbed about the amount spent on corrugated boxes purchased from Southeastern Corrugated. Ben said, I dont like the salesman from that company. He comes around here acting like he owns the place. He loves to tell us about his fancy car, house, and vacations. It seems to me he must be making too much money off of us! Jeff responded that he heard Southeastern Corrugated was going to ask for a price increase to cover the rising costs of raw material paper stock. Jeff further stated that Southeastern would probably ask for more than what was justified simply from rising paper stock costs. After the meeting, Ben decided he had heard enough. After all, he prided himself on being a results-oriented manager. There was no way he was going to allow that salesman to keep taking advantage of Coastal Products. Ben called Jeff and told him it was time to rebid the corrugated contract before Southeastern came in with a price increase request. Who did Jeff know that might be interested in the business? Jeff replied he had several companies in mind to include in the bidding process. These companies would surely come in at a lower price, partly because they used lower-grade boxes that would probably work well enough in Coastal Products process. Jeff also explained that these suppliers were not serious contenders for the business. Their purpose was to create competition with the bids. Ben told Jeff to make sure that Southeastern was well aware that these new suppliers were bidding on the contract. He also said to make sure the suppliers knew that price was going to be the determining factor in this quote, because he considered corrugated boxes to be a standard industry item. As the Marketing Manager for Southeastern Corrugated, what would you do upon receiving the request for quotation from Coastal Products?
for managing its data processing operation: continuing with its own staff, hiring an outside vendor to do the managing (referred to as outsourcing), or using a combination of its own staff and an outside vendor. The cost of the operation depends on future demand. The annual cost of each option (in thousands) depends on demand as follows. DEMAND STAFFING OPTIONS HIGH MEDIUM LOW Own Staff 650 650 600 Outside Vendor 900 600 300 Combination 800 650 500 Based on decision analysis under uncertainty, determine the best decision each of the model. Then compare all the model decision to make it overall conclusion.
As a potential owner of a club known as Club Salida, you are interested in determining the necessary volume of sales in dollars to reach the breakeven next year. You decided to break down the club's sales into. four categories, where beer is the first. Your estimate of the sale of beer is that it will serve 30,000 servings. The selling price per unit will average $ 1.50; its cost is $ .75. The second category is food, of which you expect sell 10,000 units with an average unit price of $ 10.00 and a cost of $ 5.00. The third category is desserts and wine, of which you also hope to sell 10,000 units, but with an average unit price of $ 2.50 and a cost of $ 1.00. The last category is inexpensive lunches and sandwiches, of which you expect sell a total of 20,000 units with an average price of $ 6.75 and a cost per unit of $ 3.25. Your fixed costs (i.e. rent, utilities, etc.) are $ 1,800 a month plus $ 2,000 a month for entertainment. a) What is your breakeven point in dollars per month? b)…
Tokyo Company needs the resources indicate below to produce its products Product Labor (hr./unit) Material (Ib./unit) Profit (S/unit) $3 2. 2. 3. 4. Tokyo Company has a daily labor capacity of 240 available hours and a daily supply of 400 pounds of material. The general linear programming formulation for this problem is as follows maximize 2 3 + Sxy + 2 subject to Sx + 2 + 4xy s 240 4x + Gry + 3y s 400 Management has developed the following set of goals, arranged in order of their importance to the firm (1) Because of recent labor relations difficulties, management wants to avoid underutilization of normal production capacity (2) Management has established a satisfactory profit level of S500 per day (3) Overtime is to be minimized as much as possible (4) Management wants to minimize the purchase of additional materials to avoid handling and storage problems.
Data collected on the yearly demand for 50- pound bags of fertilizer at Wallace Garden Supply are shown in the following table. Estimate demand for vear 12 with a weighted moving average in which sales in the most recent year are given a weight of 2 and sales in the other two years are each given a weight of 1. Year Demand (Bags) 4 6. 3 4. 4. 10 6 8. 8. 8. 12 10 14 11 15 O A. 13.67 O B. 14.00 OC. 14.87 O D. 11.79 Click to select your answer. Us MacBook Air 888 * ES F2 F4 F6 F7 4) F9 F10 %23 2$ & * 4 6. 7 8 9. Q W R T Y F C V В alt command command option %#3
A manufacturing firm closed down the production of a certain unprofitable product line.This necessitated the rational utilization of released excess production capacity.Management has been contemplating to devote this excess capacity to the manufacture of one or more of the three products A, B and C. The details about available excess machine capacity and machine requirements for the various products are given in I and II.I. Machine Type Available access Machine Time Milling Machine 250 hours / week Lathe 150 hours /week Ginder 50 hours /week II. Machine Type Machine hour requirements per unit of product A B C Milling Machine 8 2 3 Lathe 4 3 0 Ginder 2 0 1 It was assumed that the unit profit would be $20, $6 and$8 respectively, for products A, B and C. i. Formulate the L.P. problemii. Solve the problem by simplex method
PROBLEM The Seminole Company wishes to apply the Miller-Orr model to manage its cash investment. Seminole’s management has determined that the cost of either investing in or selling marketable securities is $200. By looking at Seminole Company’s past cash needs, they have determined that the variance of daily cash flows is $10,000. Seminole Company’s opportunity cost of cash, per day, is estimated to be 0.05%. Seminole management has figured, based on their experience dealing with the cash flows of the company, that there should be a cushion— a safety stock—of cash of $20,000. 1. How much is the variance of daily cash flows? (Use a number, no decimal value, no commas, no currency, no space) * 2. How much is the opportunity cost of cash, per day? (Use a number, must be in decimal form. eg. 6.3%/100, encode 0.063 , no commas, no currency, no space) * 3. How much is the cost per transaction? (Use a number, no decimal value, no commas, no currency, no space) * PLEASE ANSWER ALL QUESTIONS.…
PROBLEM The management of the Book Warehouse Company wishes to apply the Miller-Orr model to manage its cash investment. They have determined that the cost of either investing in or selling marketable securities is $100. By looking at Book Warehouse’s past cash needs, they have determined that the variance of daily cash flows is $20,000. Book Warehouse’s opportunity cost of cash, per day, is estimated to be 0.03%. Based on experience, management has determined that the cash balance should never fall below $10,000. 1. How much is the cost per transaction?(Use a number, no decimal value, no commas, no currency, no space) * 2. How much is the return point based on the Miller-Orr model of cash management? (Use a number, no decimal value, no commas, no currency, no space) * 3. How much is the upper limit based on the Miller-Orr model of cash management?(Use a number, no decimal value, no commas, no currency, no space) * PLEASE ANSWER ALL QUESTIONS. THANKS!
A local semiconductor firm, Superchip, is planning its workforce and productionlevels over the next year. The firm makes a variety of microprocessors and usessales dollars as its aggregate production measure. Based on orders received and sales forecasts provided by the marketing department, the estimate of dollarsales for the next year by month is as follows:Production Predicted DemandMonth Days (in $10,000)January 22 340February 16 380March 21 220April 19 100May 23 490June 20 625July 24 375August 12 310September 19 175October 22 145November 20 120December 16 165Inventory holding costs are based on a 25 percent annual interest charge. It is anticipatedthat there will be 675 workers on the payroll at the end of the current year and inventorieswill amount to $120,000. The firm would like to have at least $100,000 of inventory at theend of December next year. It is estimated that each worker accounts for an average of$60,000 of production per year (assume that one year consists of 250…
6. A dessert shop plans to purchase a new commercial ice cream maker to replace the old one. They are deciding on two models: Model SUPER costs $3,000 for purchase and $1 in average to make one serving of ice cream. Model PRO costs $5,000 for purchase and a lower cost of $0.8 to make one serving of ice cream. The shop is selling $4 per ice cream serving in average. What would be the monthly demand (in servings) to make Model PRO more preferred? Select one: a. at least 16,000 servings b. no more than 10,000 servings c. at least 10,000 servings d. model PRO is always preferred. e. always no preference.

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Develop and solve a linear programming model to determine the optimal production quantities of products 1 and 2.