Last Updated 06 Aug 2020

# Decision Making Problem

Category Decision Making
Essay type Research
Words 1032 (4 pages)
Views 344

The report should highlight your findings (e. g. business implications) and be prepared as if to be presented to an audience that has little knowledge of quantitative models. The technical appendix should include a formulation of a linear model, as we did in class (decisions, objective, constraints), and standard printouts of the spreadsheet model with an optimal solution (see Instructions for Standard Printouts below).

Problem 1: Perfume (30 marks)

Rylon Corporation manufactures Brute and Chanelle perfumes. Raw material costs \$3 per pound. Processing a pound of raw material takes one hour of laboratory time, and yields 3 ounces of Regular Brute and 4 ounces of Regular Chanelle perfume. Regular Brute can be sold for \$7/ounce and Regular Chanelle can be sold for \$6/ounce. Rylon has the option of further processing Regular Brute perfume to produce Luxury Brute perfume, selling for \$18/ounce. Each ounce of Regular Brute processed requires an additional 3 hours of laboratory time and yields one ounce of Luxury Brute at a cost of \$4. They can also process Regular Chanelle into Luxury Chanelle. Processing an ounce of Regular Chanelle requires 2 additional hours of lab time and yields one ounce of Luxury Chanelle, again at a cost \$4. Luxury Chanelle sells for \$14/ounce. Rylon has 4000 pounds of raw material on hand and 6000 hours of lab time available. How can they maximize their profit?

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SKOLKOVO FT MBA  Problem 2: Production & advertisement (35 marks) Your firm makes fluorescent paint pigments in four plants and ships them to four distributors (abbreviated "D1" through "D4"), as follows: Plant Northeast Southeast Northwest. Southwest Unit Shipping Cost To D2 D3 Capacity Unit Cost Impurities D1 1000 \$ 12. 40 12 \$ 1. 20 \$ 1. 75 \$ 2. 35 1250 \$ 11. 55 15 \$ 1. 95 \$ 1. 35 \$ 1. 75 950 \$ 10. 85 18 \$ 2. 45 \$ 1. 50 \$ 2. 10 1200 \$ 12. 05 12 \$ 2. 75 \$ 2. 25 \$ 2. 00 D4 \$ 2. 85 \$ 2. 15 \$ 1. 95 \$ 1. 45 The distributors' demand for the pigments is as follows: D1 15. 0 Max Impurities 700 Base Demand Advertising Sensitivity 0. 05 D2 15. 0 600 0. 1 D3 14. 0 550 0. 05 D4 15. 5 675 0. 125 For example, distributor D1 will accept up to 700 units of pigment, plus 0. 05 units for every dollar you spend on national advertising.

Advertising is not separated by the distributor: a single expenditure affects all distributors simultaneously. Thus, if you spend \$100 on advertising, D1's demand will be 700 + (0. 05)(100) = 705 units, D2's demand will be 600 + (0. 1)(100) = 610 units, D3's demand will be 555 units, and D4's demand will be 687. 5 units. "Max impurities" indicates the maximum average impurity level allowed for shipments to each distributor. For instance, the shipments from the four plants to D1, when mixed together, should have an average impurity level of at most 15. You have at most \$59,000 to spend on production, shipping, and advertising, and all the distributors pay you \$28. 50 per unit. How can you maximize your profits? Note: this problem combines blending, transportation, and elements of the "pickles" problem. Formulate a linear model. Give clear definitions to your decision variables. Set up a spreadsheet model. Use Solver to find the optimal solution.

Kingston Manufacturing has just shut down for the week and the line has been producing the PHead. The manager wants to plan production and changeovers for the next eight weeks. Currently, Buckeye has an inventory of 125 P-Heads and 143 H-Heads. Inventory carrying costs are charged at an annual rate of 19. 5% of the value of inventory. The production cost for the P-Head is \$225 and the H-Head is \$310. The objective of developing a production schedule is to minimize the sum of production cost, inventory carrying cost, and changeover costs. The standard printouts for a model consisting of two things. The first is a printout of the model as a set of values, the way it usually appears on the screen. Click on the Sheet tab. If there is no "X" in the box next to “Gridlines” and "Row and Column Headings", click there so that one appears. Click OK Click on the printer icon in the toolbar, or choose Print... from the File menu to print the spreadsheet. If possible, you should try to make each spreadsheet printout fit on a single page.

Under the Print/Settings select "landscape" orientation, and "fit sheet on one page" before you print. The second printout should be a set of formulas. It should show the formulas in your spreadsheet; for optimization models (which will be most of our spreadsheets), it should also clearly indicate the target cell, the changing cells, and all constraints. Also indicate whether you are minimizing or maximizing the target cell. Print out the spreadsheet, using the same procedure as above. To indicate the target cell, minimization or maximization, changing cells, and constraints, you may make handwritten notations on this second printout. Alternately, you may make notations using text and graphics on the spreadsheet itself. Excel will let you draw arrows right on your spreadsheet. Points will be deducted if you fail to follow these guidelines. Common errors are forgetting the row and column headings, or not clearly indicating the changing cells, target cell, or constraints. To go back to the values view, type control-tilde.

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