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CSUF ISDS 514 - ISDS 514 First Exam

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ISDS 514 First ExamDr. Zvi Drezner Fall, 2006ISDS 514 First ExamDr. Zvi Drezner Fall, 2006Answer the following three questions. Prepare one file with separate sheets for different questions properly labeled.Question #1The Westchester Chamber of Commerce periodically sponsors public service seminars and programs. Currently promotional plans are under way for this year’s program. Advertising alternatives include television, radio, and newspaper. Audience estimates, cost, and the maximum number of ads for each medium are shown below.Parameter Television Radio NewspaperAudience per advertisement 100,000 18,000 40,000Cost per advertisement $2,000 $300 $600Maximum medium ads 10 20 10To ensure a balanced use of advertisement media, radio advertisement must not exceed 50% of the total number of advertisements bought. In addition, television ads should account for at least 10% of the total number of advertisements bought. The number of adsin each medium does not have to be integer.a. If the potential budget is limited to $18,200, how many commercial messages should be run on each medium to maximize total audience contact?b. What is the allocation of the budget among the three media, and what is the total audience reached?c. By how much will the audience contact increase if an extra $1,000 were allocated to the advertising budget?d. What is the minimum budget required to have an exposure to 1,000,000 people?Question #2Solve the following PERT problem (overleaf) and answer the following questions:1. What is the duration of the project?2. What is the critical path?3. What is the standard deviation of the duration of the project?4. If you consider 2.5 standard deviations as "safe" what duration will you commit yourself to?Activity Predecessors Optimistic Most likely PessimisticA D 6 9 12B C 12 18 18C F,H 5 6 13D -- 10 13 16E F,J 12 13 14F A,D 8 14 14G F,H 10 12 20H A,D 12 15 18I A,E,J 5 7 9J C,F,H 4 5 6Question #3You wish to open a few stores in Southern California. The following sites are potential locations. Data is given in millions of dollars for building a full size store. You may build a fraction of a full size store at each site and the parameters of building cost, annual sales and annual expenses are multiplied by that factor.Site Building cost Potential annual sales Annual expensesA 48 7.2 0.8B 29 4.2 0.4C 60 7.5 0.7D 54 8.0 0.9E 39 5.6 0.6F 42 5.7 0.5G 37 5.3 0.5H 55 8.4 0.8You have a budget not to exceed 200 million dollars for building. Your planning horizon (for which you assume potential sales and expenses) is the next 10 years (do not use present values for this problem). You cannot build more than one full size store at each site but you can build a fraction of a full size store. Which sites should you choose so thatyour net profit (sales minus expenses over 10 years minus the building cost) is maximized? Which sites are selected and what fraction of a full size store is built at each site? What is the total building cost? What is your expected net


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CSUF ISDS 514 - ISDS 514 First Exam

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