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# 商业分析期中代写 ADM 2302代写 商业分析考试代考

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## ADM 2302 MIDTERM EXAM

### Instructions:

1. Please answer all the questions in the space provided. If you require more space you may use the back of the page. Only answers in this booklet will be marked.
• This is a closed-book exam: however, two cheat-sheet and pocket calculator are allowed.  The cheat-sheet must be handed over with the exam copy at the end of the exam period, or else your copy will not be marked.
• Wishing you all the best.

DO NOT WRITE ON THE TABLE BELOW

### Problem 1 (6 points)商业分析期中代写

There are four marketing research firms (MR1, MR2, MR3, MR4) that HairWays has faith in to advertise its products. HairWays has just come out with a new hairspray and they wish to have 30 newspaper ads, 15 television ads, and 25 radio ads available within three months. Given the size of the firms it is expected that MR1 can produce 20 total ads, MR2 can produce 25 total ads, MR3 can produce 15 total ads, and MR4 can produce 20 total ads. The bids submitted by the marketing research firms (in thousands of dollars per ad) are:

a. Formulate this problem as a linear program.  Define the decision variables, objective function, constraints. DO NOT SOLVE (5 points)

b. Show that this LP fits the structure of a transportation problem. (1 point)

### Problem 2: (6 points)商业分析期中代写

You have been hired to survey cable television customers to determine their attitudes toward a restructuring of the basic cable service and rate schedule.  The cable company wants to classify participants according to whether or not they have children under the age of 16 in the household and as to whether or not the household subscribes to any premium channels.

The basic cost of conducting an interview is \$5.  Those households with children under 16 are asked a second series of questions which adds an additional cost of \$4 to their interviews.  Households with premium channels are questioned about their viewing habits, and this adds an additional \$3 to the cost of their interviews.  Cost is to be minimized.

The cable company wants responses from at least 50 customers.  Premium subscribers should constitute at least half of the customers surveyed.  At least 60% of households surveyed should have children under 16.  Of those households with children under 16, no more than half should be premium subscribers.

Formulate the corresponding linear programming model. (Define decision variables the objective function and the constraints). DO NOT SOLVE

(Hint: use the cost information to assist in finding the decision variables)

### Problem 3 (10 points)商业分析期中代写

Buster Sod operates an 800-acre irrigated farm in the Red River Valley of Arizona.  Sod’s principal activities are raising wheat, alfalfa and beef.  The Red River Valley Water Authority has just given its water allotments for the next year (Sod was allotted 1000 acre-feet), and Sod is busy preparing his production plan for next year.

He figures that beef prices will hold at around \$500 per ton and that wheat will sell at \$2 per bushel.  Best guesses are that he will be able to sell alfalfa at \$22 per ton, but if he needs more alfalfa to feed his beef than he can raise, he will have to pay \$28 per ton to get the alfalfa to his beef feedlot.

The wheat yield is 70 bushels per acre; alfalfa yield is 4 tons per acre.  Other features of Sod’s operation are given in the table below:

#### a. Does Soy Buy or Sell Alfalfa? Justify. (0.5 points)

b. How much beef is being produced? And how much profit will Sod receive from the optimal operations of his farm? (1 points)

c. How much should Sod pay to acquire another acre-feet of water? Justify. (0.5 points)

d. Sod is considering buying an additional 1400 acres of land at a total price of \$2,940,000.  What would you recommend? Justify. (1.5 points)

e. Red River Valley Authority decided to decrease its water allotment to 500 acre-feet, what will happen to the optimal solution (not the shadow prices)? Justify. (1 points)

f. What will happen to the optimal solution if the price of wheat triples (e.g. it increases from \$2 per bushel to \$6 per bushel)? What happens to the optimal value of the objective function? (1.5 points)

g. What will happen to the optimal solution and the optimal value of the objective function if the cost of alfalfa purchased increases form \$28 to \$29? (1 points)

h. How much can the cost of buying alfalfa decrease before the current optimal solution will change? (1 points)

i. Sod is considering raising and selling barely. The profit contribution of barely is \$320/ton.

j. Barely yield 10 tons per acre. For 1 acre of barely the water requirement per acre-feet is 6.  Should Sod start raising barely? Justify. (2 points)

### Problem 4: Circle the proper answer to each question (8 points)

No Multiple Choices Questions on your Midterm exam. Thus, the content of this question was deleted.

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