Midterm 11

Midterm 11 - _ _ BUSI 410 MIDTERM QUIZ Monday, February 21,...

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___________________________________________________________________________________ _ BUSI 410 – MIDTERM QUIZ Monday, February 21, 2011, 7-9 pm This quiz consists of four short cases: Designing Meals at Panera Bread, on pp. 3-5, worth 27 points Assembling Computers at iBUYPOWER on pp. 6-9, worth 22 points Project Planning at Intel on pp. 10-13, worth 27 points Reservation Booking on Flight 43, on pp. 14-16, worth 24 points The quiz is open book, open notes, and open laptops. Your laptop’s wireless connectivity must be disabled. The quiz is closed cell phones and closed friends. Show all of your work on the quiz papers. Name________________________________________ Please Print Section (please circle): MW 9:30 MW 11:00 MW 12:30 MW 2:00 Honor Code Pledge: I have neither given nor received unauthorized aid on this quiz. Signature_____________________________________
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Designing Meals at Panera Bread Panera Bread has recently been approved to sell a healthy meal in Café McColl. This meal includes grilled chicken, salad, soup and bread. The nutrition content and unit production cost are provided in the following table. For example, each gram of grilled chicken has 15 k calories, 0 mg of fiber, 15 mg of protein and costs $0.05 to prepare. Nutrition or cost per gram Calories (kcal) Fiber (mg) Protein (mg) Cost Grilled chicken 15 0 15 $0.05 Salad 5 20 0 $0.02 Soup 10 5 10 $0.04 Bread 8 10 3 $0.01 Part A. As an advocate of healthy food, Panera Bread advertises that this meal has no more than 600 kcal and at least twice as much of fiber as protein. However, to ensure the meal is still attractive to meat lovers, Panera Bread requires grilled chicken to account for at least 30% of the total weight. However, to ensure profitability of the meal, grilled chicken can account for at most 20% of the total preparation cost of a meal. Panera Bread hires you as a consultant and wants you to determine the amount of grilled chicken, salad, soup and bread needed in each meal to meet the above requirements while minimizing its preparation cost. Formulate but do not solve the meal design problem for Panera Bread as a linear program and answer the following questions: a. (8 points) What are the decision variables? (state in English & define symbols to represent them) b. (3 points) What are the objective function and the objective criterion (maximize or minimize)? (State in English and provide the mathematical equation)
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c. (7 points) What are the constraints? (State in English and provide the mathematical equations) Treat questions B and C as continuations of question A, and independent (i.e., not sequential) to one another. Part B. (3 points) Suppose you solve the problem you formulated in part A and find that the optimal meal has exactly twice as much fiber as protein. Recently Panera has experienced a shortage in vegetables, which are Panera Bread’s main source of fiber. In response, Panera Bread decides to temporarily remove the requirement that the meal has at least twice as much
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Midterm 11 - _ _ BUSI 410 MIDTERM QUIZ Monday, February 21,...

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