MAT540 Week 2 Home Work
8. A local real estate investor in Orlando is considering three alternative investments: a motel, a
restaurant, or a theater. Profits from the motel or restaurant will be affected by the availability
of gasoline and the number of tourists; profits from the theater will be relatively stable under
any conditions. The following payoff table shows the profit or loss that could result from each
Investment Shortage Stable Supply Surplus
Motel $_8,000 $15,000 $20,000
Restaurant 2,000 8,000 6,000
Theater 6,000 6,000 5,000
Determine the best investment, using the following decision criteria.
c. Minimax regret
e. Equal likelihood
16. A concessions manager at the Tech versus A&M football game must decide whether to have the
vendors sell sun visors or umbrellas. There is a 30% chance of rain, a 15% chance of overcast skies,
and a 55% chance of sunshine, according to the weather forecast in College Junction, where the
game is to be held. The manager estimates that the following profits will result from each decision,
given each set of weather conditions:
Decision Rain Overcast Sunshine
.30 .15 .55
Sun visors $_500 $_200 $1,500
Umbrellas 2,000 0 _900
a. Compute the expected value for each decision and select the best one.
b. Develop the opportunity loss table and compute the expected opportunity loss for each decision.
24. In Problem 13 the Place-Plus real estate development firm has hired an economist to assign a probability
to each direction interest rates may take over the next 5 years. The economist has determined
that there is a .50 probability that interest rates will decline, a .40 probability that rates will remain
stable, and a .10 probability that rates will increase.
a. Using expected value, determine the best project.
b. Determine the expected value of perfect information.
32. The director of career advising at Orange Community College wants to use decision analysis to
provide information to help students decide which 2-year degree program they should pursue. The
director has set up the following payoff table for six of the most popular and successful degree programs
at OCC that shows the estimated 5-year gross income ($) from each degree for four future
Degree Program Recession Average Good Robust
Graphic design 145,000 175,000 220,000 260,000
Nursing 150,000 180,000 205,000 215,000
Real estate 115,000 165,000 220,000 320,000
Medical technology 130,000 180,000 210,000 280,000
Culinary technology 115,000 145,000 235,000 305,000
technology 125,000 150,000 190,000 250,000
Determine the best degree program in terms of projected income, using the following decision
c. Equal likelihood
36. Construct a decision tree for the decision situation described in Problem 25 and indicate the best
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