season1: Battle Pacific or Space Pirates. Battle Pacific is a unique game and appears to have no competition. Estimated profits (in thousands of dollars) under high, medium, and low demand are as follows:
Battle Pacific High Medium Low
Profit $1000 $700 $300
Probability 0.2 0.5 0.3
Video Tech is optimistic about its Space Pirates game. However, the concern is that profitability will be affected by a competitor’s introduction of a video game viewed as similar to Space Pirates. Estimated profits (in thousands of dollars) with and without competition are as follows:
Space Pirates Demand
With Competition High Medium Low
Profit $800 $400 $200
Probability 0.3 0.4 0.3
Space Pirates Demand
Without Competition High Medium Low
Profit $1600 $800 $400
Probability 0.5 0.3 0.2
For planning purposes, Video Tech believes there is a 0.6 probability that its competitor will produce a new game similar to Space Pirates. Given this probability of competition, the director of planning recommends marketing the Battle Pacific video game. Using expected value, what is your recommended decision and what is the expected profit?
1This problem is adapted from Camm et al., Essentials of Business Analytics, Chapter 12, pp. 586 – 587, Exercise 8, 2015, Cengage Learning.
- Reconsider the problem in Question 1. Suppose that the profits (in thousands of dollars) are uncertain. For Battle Pacific:
• When demand is high, the profit is normally distributed with mean 1000 and standard deviation 100.
• When demand is medium, the profit is normally distributed with mean 700 and standard deviation 70.
• When demand is low, the profit is normally distributed with mean 300 and standard deviation 30. For Space Pirates with competition:
• When demand is high, the profit is normally distributed with mean 800 and standard deviation 80.
• When demand is medium, the profit is normally distributed with mean 400 and standard deviation 40.
• When demand is low, the profit is normally distributed with mean 200 and standard deviation 20.
For Space Pirates without competition:
• When demand is high, the profit is normally distributed with mean 1600 and standard deviation 160.
• When demand is medium, the profit is normally distributed with mean 800 and standard deviation 80.
• When demand is low, the profit is normally distributed with mean 400 and standard deviation 40.
Incorporate this information to your decision tree. What is the probability that the expected profit will be less than $724.000?
- A company must decide whether to manufacture a component part in its plant or purchase the component part from a supplier. The resulting profit is dependent upon the demand for the product. The following payoff table shows the projected profit (in thousands of dollars): State of Nature
Decision Alternative Low Demand, s1 Medium Demand,s2 High Demand,s3
Manufacture,d1 -20 40 100
Purchase, d2 10 45 70
The state-of-nature probabilities are P(s1) = 0.35, P(s2) = 0.35, and P(s3) = 0.30. a. Use a decision tree to recommend a decision.
b. A test market study of the potential demand for the product is expected to report either a favorable (F) or unfavorable (U) condition. The relevant conditional probabilities are as follows:
P(F|s1) = 0.10 P(U|s1) =0.90
P(F|s2) = 0.40 P(U|s2) = 0.60
P(F|s3) = 0.60 P(U|s3) = 0.40
What is the probability that the market research report will be unfavorable?
c. What is the company’s optimal decision strategy?
d. What is the expected value of the market research information?
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