Deneme Sınavı Soruları

      States of Nature

      S1(0.4)  S2(0.6)

A1   50        110

A2  100         60

A3   60        100

A4   70          90

A5   90          70

Which decision alternative (A1..A5) of the TL gain strategy table above should be chosen depend on Expected Monetary Value criterion ?

In the decision making process under risk, a probability value must be determined for the chance of realization of all states of nature in the strategy table. So, what must the sum of all probabilities of states of nature be equal to ?

Which of the following assumptions means that each parameter of a linear programming model is constant in all conditions?

Which of the following is a linear expression?

Which of the following is not one of the reasons for making decisions difficult?

What is the decision situation in which the decision maker knows the probability of occurrence of each state of nature?

An investor has $1,000 to invest in bonds and stocks of a company. A bond costs $5 and pays $1 coupon annually. The expected one-year yield on this bond is 25%. A stock costs $10 per share and pays $0.8 dividend. The total rate of return expectation for stock B is 50%. For liquidity reasons, investor demands at least $80 of cash from dividends (or coupons) at the end of the year. So as to manage the risk of the portfolio, investor sets an upper and lower limit to the percentage of the funds to be invested in stocks, which are 40% and 20%, respectively. The investor has to decide the optimal amount of shares which makes the total rate of return for the portfolio is maximum. 

According to the information above, what are the decision variables?

Which of the following is not one of the methods of decision making under uncertainty?

     States of Nature

       S1(0.6)  S2(0.4)

A1   50         110

A2  100          60

A3   60         100

A4   70           90

A5   90           70

Which decision alternative (A1..A5) of the TL cost strategy table above should be chosen depend on Expected Monetary Value criterion?

Which formula can be applied to calculate Criterion of Optimism?

Which of the alternatives below is true regarding this given linear program: Maximize Z = 2x₁ + x₂ subject to 5x₁ + 6x₂ ≤ 30, –x₁ + 4x₂ ≤ 12, x₁≥ 0, x₂ ≥ 0.

There are five different medical product of a company. The table shows production times of each products according to the order quantities. The aim of the decision maker is to complete the production in minimum time. Which product would be the most appropriate decision for the problem according to the Equally Likely Method?

"An airport ground operations firm seeks to minimize the cost of human resource for its passenger services. The airport runs 7/24 and the number of passengers fluctuates with the time of the day. To maintain the quality of the service, the operations manager keeps the passengers-to-service personnel ratio at a threshold level. Hence the number of personnel needed has to be optimized as the number of passengers change. The personnel works eight successive hours a day only with five-shift schedule starting at 4 a.m., 8 a.m., 12 p.m., 4 p.m. and 8 p.m."

The problem given above is an example of which of the following?

1. Proportionality
2. Additivity
3. Divisibility
4. Certainty

What assumption/s does linear programming provide solutions under?

Which of the followings are the way of finding the probabilities that one of the most important issues of decision-making under risk environment?

1. Personal opinions of the decision-maker
2. Statistical records
3. Expert opinions
4. Market research

In which decision making environment, the decision maker knows outcomes of events for each decision alternative?

"When the decision maker does not know the probabilities of occurrence of events, the
decision-making is called ________." With which of the following should this be filled in?

1. In the maximization models, the objective function is alternatively named profit function.
2. In the maximization models the value of Z needs to be increased as much as possible.
3. A finite number of iso-profit lines can be drawn for increasing values of Z.
4. Under the constraints of the model, the highest possible value of Z must reside in the feasible region.

Which of the statements above about the maximization models are correct?