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Section 3 Queuing Costs 1) The cost of waiting decreases as

Section 3 Queuing Costs 1) The cost of waiting decreases as the service level increases. 2) The study of waiting lines calculates the cost of providing good service but does not value the cost of customers' waiting time. 3) Which of the following occurs as the level of service decreases? A) Cost of waiting.

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Section 3 Queuing Costs 1) The cost of waiting decreases as

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7) Sam's hardware store has an order policy of ordering

7) Sam's hardware store has an order policy of ordering 12 gallons of a specific primer whenever 7 gallons are on hand (unless there's already an ordered delivery due). The store would like to see how well their policy works. Assume that beginning inventory in period 1 is 10 gallons.

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7) Sam's hardware store has an order policy of ordering

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31) Complete the following table in preparation for a Monte

31) Complete the following table in preparation for a Monte Carlo simulation. Demand Probability Cumulative Probability Interval of Random Numbers 1 01-20 2 21-25 3 26-50 4 51-80 5 81-00 32) Complete the following table in preparation for a Monte Carlo simulation. The expected demand is 3.52. Demand Probability Cumulative Probability Interval of Random Numbers 0 .1 2 11-23 3 .5 4 86-00 .

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31) Complete the following table in preparation for a Monte

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44) Provide an example of a limited or finite population

44) Provide an example of a limited or finite population for a queue. 45) What does it mean to have a patient customer in a waiting line? 46) Describe the difference between FIFO and LIFO queue disciplines. 47) What are the components in a waiting-line system? 48) Identify the seven major measures of a.

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44) Provide an example of a limited or finite population

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27) Find the minimum cost solution for the transportation problem

27) Find the minimum cost solution for the transportation problem detailed in the table below. Before your solution can be implemented, you discover that the combination Source 3 — Destination 1 is unavailable, due to political turmoil in the country where Source 3 is located. Solve the revised problem. How much.

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27) Find the minimum cost solution for the transportation problem

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23) What the Monte Carlo method? 24) Identify, in order, the

23) What is the Monte Carlo method? 24) Identify, in order, the five steps required to implement the Monte Carlo simulation technique. 25) Explain how Monte Carlo simulation uses random numbers. 26) Provide a small example illustrating how random numbers are used in Monte Carlo simulation. .

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23) What the Monte Carlo method? 24) Identify, in order, the

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46) Your company making experimental turbochargers for a new design

46) Your company is making experimental turbochargers for a new design of high-powered farm tractors. The production schedule for these new components is contained in the table below. Month Turbochargers 1 4 2 6 3 7 4 8 5 5 The first turbocharger, a trial unit, took 900 hours to produce. Based on your experience with similar products, the learning curve is 85%..

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46) Your company making experimental turbochargers for a new design

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11) Which of the following best conveys the essence of

11) Which of the following best conveys the essence of learning curves? A) As the number of repetitions increases, time per unit increases. B) As the number of repetitions decreases, time per unit increases. C) As the number of repetitions increases, time per unit decreases. D) As the number of repetitions increases, time per.

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11) Which of the following best conveys the essence of

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Section 3 Monte Carlo Simulation 1) By starting random number intervals

Section 3 Monte Carlo Simulation 1) By starting random number intervals at 01, not 00, the top of each range is the cumulative probability. 2) A simulation is "Monte Carlo" when the elements of a system being simulated exhibit chance in their behavior. 3) Random number intervals are based on cumulative probability distributions. 4).

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Section 3 Monte Carlo Simulation 1) By starting random number intervals

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55) A product was priced assuming an 80% learning curve.

55) A product was priced assuming an 80% learning curve. How much extra labor (in $) will be required on the 4th product if the learning curve is actually 90%? Assume that the first unit cost $100 to produce. 56) The fourth unit of production took 80 minutes while the ninth.

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55) A product was priced assuming an 80% learning curve.

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ISBN10: 9780132730013

Subject: Supply Chain Management

Chapters: 13

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42) You about to undertake the manufacture of a labor-intensive

42) You are about to undertake the manufacture of a labor-intensive electronics component. The first unit took 300 hours. You are not sure whether the learning curve is 70% or 80%. The initial phase of the contract calls for 6 of these components. a. How much time will it take to.

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42) You about to undertake the manufacture of a labor-intensive

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22) Describe the earliest application of learning curve concepts to

22) Describe the earliest application of learning curve concepts to industry. 23) In addition to labor, to which other variables have learning curves been applied? 24) What is the basic premise underlying the learning curve? .

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22) Describe the earliest application of learning curve concepts to

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33) Which of the following a measure of queue performance? A)

33) Which of the following is a measure of queue performance? A) utilization factor for the system B) average queue length C) probability of a specific number of customers in the system D) average waiting time in the line E) all of the above 34) Which of the following is most likely to be served in.

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33) Which of the following a measure of queue performance? A)

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Section 1 What Is a Learning Curve? 1) Experience curves may

Section 1 What Is a Learning Curve? 1) Experience curves may be valid for industrial applications, but have no role in services such as health care procedures. 2) Experience curves are the opposite of learning curves—as one rises, the other falls. 3) Learning curves are based on the premise that people and organizations.

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Section 1 What Is a Learning Curve? 1) Experience curves may

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ISBN10: 9780073525228

Subject: Supply Chain Management

Chapters: 26

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17) A queuing model that follows the M/M/1 assumptions has

17) A queuing model that follows the M/M/1 assumptions has λ = 2 and μ = 3. What is the average number of units in the system? A) 2/3 B) 1 C) 1.5 D) 2 E) 6 18) A queuing model that follows the M/M/1 assumptions has λ = 3 and μ = 2. What is.

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17) A queuing model that follows the M/M/1 assumptions has

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37) Your firm has a contract to make 20 specialty

37) Your firm has a contract to make 20 specialty lenses for night vision equipment. The first one took 40 hours. Learning is expected at the 85% learning curve. How long will it take to finish all 20 units? 38) Your firm has expertise with a special type of hand-finished furniture..

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37) Your firm has a contract to make 20 specialty

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41) Why must the service rate be greater than the

41) Why must the service rate be greater than the arrival rate in a single-server system? 42) A waiting line meeting the M/M/1 assumptions has an arrival rate of 4 per hour and a service rate of 12 per hour. What is the probability that the waiting line is empty? 43) A.

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41) Why must the service rate be greater than the

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27) Source A has capacity of 15, Source B has

27) Source A has capacity of 15, Source B has capacity of 30, Destination 1 has demand of 5 and Destination 2 has demand of 20. Fill in the following table with the correct initial solution for a northwest-corner method approach. Destination 1 Destination 2 Source A Source B 28) A transportation model uses no.

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27) Source A has capacity of 15, Source B has

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27) Students arrive randomly at the help desk of the

27) Students arrive randomly at the help desk of the computer lab. There is only one service agent, and the time required for inquiry varies from student to student. Arrival rates have been found to follow the Poisson distribution, and the service times follow the negative exponential distribution. The average.

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27) Students arrive randomly at the help desk of the

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Chapters: 14

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7) A waiting line model meeting the assumptions of M/M/1

7) A waiting line model meeting the assumptions of M/M/1 has an arrival rate of 2 per hour and a service rate of 6 per hour. What is the utilization factor for the system? A) 0.25 B) 0.33 C) 0.50 D) 0.67 E) 3.00 8) Which one of the following is NOT a characteristic of a.

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7) A waiting line model meeting the assumptions of M/M/1

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13) In queuing problems, which of the following probability distributions

13) In queuing problems, which of the following probability distributions is typically used to describe the number of arrivals per unit of time? A) binomial B) normal C) Poisson D) exponential E) lognormal 14) In queuing problems, which of the following probability distributions is typically used to describe the time to perform the service? A) binomial B) normal C).

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13) In queuing problems, which of the following probability distributions

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51) A crew of mechanics at the Highway Department Garage

51) A crew of mechanics at the Highway Department Garage repair vehicles that break down at an average of λ = 8 vehicles per day (approximately Poisson in nature). The mechanic crew can service an average of μ= 11 vehicles per day with a repair time distribution that approximates an.

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51) A crew of mechanics at the Highway Department Garage

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Section 2 Learning Curves in Services and Manufacturing 1) The learning

Section 2 Learning Curves in Services and Manufacturing 1) The learning curve in the steel industry and the learning curve in heart transplants have both been estimated at 79 percent. 2) A project manager bases his time and labor estimates on a learning curve of 86%. The actual learning curve turns out.

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Section 2 Learning Curves in Services and Manufacturing 1) The learning

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Section 1 Queuing Theory 1) Waiting-line models useful to operations in

Section 1 Queuing Theory 1) Waiting-line models are useful to operations in such diverse settings as service systems, maintenance activities, and shop-floor control. A) service systems such as bank teller stations. B) maintenance activities that might repair broken machinery. C) shop-floor control activities. D) service systems such as amusement park rides. E) all of the above 3).

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Section 1 Queuing Theory 1) Waiting-line models useful to operations in

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20) What does the stepping-stone method do? 21) What the difference

20) What does the stepping-stone method do? 21) What is the difference between a feasible solution and an optimal solution? 22) Consider the transportation problem in the data set and optimal solution below. Verify by hand or by calculator (show your work) the value of the total shipping cost. 23) Find the minimum.

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20) What does the stepping-stone method do? 21) What the difference

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31) To use the table of learning-curve coefficients, you must

31) To use the table of learning-curve coefficients, you must specify and . 32) Identify one advantage and one disadvantage of the doubling approach over the formula approach to learning curve calculations. 33) In the formula approach to learning curve calculations, you have used the formula TN = T1 (Nb). For.

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31) To use the table of learning-curve coefficients, you must

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Section 2 Advantages and Disadvantages of Simulation 1) One effective use

Section 2 Advantages and Disadvantages of Simulation 1) One effective use of simulation is to study problems for which the mathematical models of operations management are not realistic enough. 2) Simulation allows managers to test the effects of major policy decisions on real-life systems without disturbing the real system. 3) Simulation provides optimal.

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Section 2 Advantages and Disadvantages of Simulation 1) One effective use

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11) Which of the following TRUE regarding the use of

11) Which of the following is TRUE regarding the use of simulation? A) It is always very easy to build a simulation model. B) It may interfere with real-world systems. C) It always yields optimal solutions. D) It allows time-compression in testing major policy decisions. E) Few constraints, if any, have to be considered. 12) Simulation.

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11) Which of the following TRUE regarding the use of

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12) Why do different organizations have different learning curves? 13) When

12) Why do different organizations have different learning curves? 13) When comparing a 70% learning curve versus a 90% learning curve, which one results in a more rapid reduction in labor requirements? Why? 14) What problems in scheduling can arise if adjustments for learning curve effects in operations are not made? 15) "By.

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12) Why do different organizations have different learning curves? 13) When

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20) When does degeneracy occur in a transportation model? 21) When

20) When does degeneracy occur in a transportation model? 21) When is it necessary to add dummy sources or destinations to a transportation problem? 22) The larger a transportation problem (that is, as the problem has more rows and more columns), the smaller the fraction of all possible routes that will be.

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20) When does degeneracy occur in a transportation model? 21) When

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Section 4 Special Issues in Modeling 1) Degeneracy in a transportation

Section 4 Special Issues in Modeling 1) Degeneracy in a transportation problem is when no closed path exists for evaluating an unused cell. 2) A transportation problem with a total supply of 500 and a total demand of 400 will have an optimal solution that leaves 100 units of supply unused. 3) A.

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Section 4 Special Issues in Modeling 1) Degeneracy in a transportation

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11) Consider the transportation problem and its optimal solution in

11) Consider the transportation problem and its optimal solution in the tables below. The cell Source 3 — Destination 3 is currently empty. What would be the change in the total shipping cost if the largest possible amount were shipped using that route, leaving all the supply and demand conditions.

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11) Consider the transportation problem and its optimal solution in

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11) A transportation problem has 4 origins and 2 destinations.

11) A transportation problem has 4 origins and 2 destinations. The optimal solution of this problem will fill no more than ________ cells with quantities to be shipped. A) 5 B) 6 C) 8 D) 20 E) All cells will be occupied. 12) A large transportation problem has 220 origins and 1360 destinations. The optimal solution.

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11) A transportation problem has 4 origins and 2 destinations.

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28) Explain the difference between random numbers and random number

28) Explain the difference between random numbers and random number intervals. 29) Complete the following table in preparation for a Monte Carlo simulation. Demand Probability Cumulative Probability Interval of Random Numbers 0 .1 1 .15 2 .4 3 .15 4 .2 30) Suppose the following random numbers (1, 34, 22, 78, 56, 98, 00, 82) were selected during a Monte Carlo simulation that was based on.

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28) Explain the difference between random numbers and random number

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Section 1 What Simulation? 1) Simulation has numerous applications in modern

Section 1 What is Simulation? 1) Simulation has numerous applications in modern business, but few of these are in the area of operations. 3) Simulation may be capable of producing a more appropriate answer to a complex problem than can be obtained from a mathematical model. 4) Virtually all large-scale simulations take place.

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Section 1 What Simulation? 1) Simulation has numerous applications in modern

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56) A waiting-line system that meets the assumptions of M/M/1

56) A waiting-line system that meets the assumptions of M/M/1 has λ = 1, μ= 4. Calculate Po. Build a table showing the probability of more than 0, 1, 2, 3, 4, 5, 6, and 7 units in the system. Round to six decimal places in your work Number in system Probability.

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56) A waiting-line system that meets the assumptions of M/M/1

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15) State, in order, the three steps in making an

15) State, in order, the three steps in making an initial allocation with the northwest-corner rule. (1) Exhaust the supply (factor capacity) of each row before moving down to the next row. (2) Exhaust the demand (warehouse) requirements of each column before moving to the next column on the right. (3) Check to.

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15) State, in order, the three steps in making an

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24) Consider the transportation data set for a minimization problem

24) Consider the transportation data set for a minimization problem below. a. Calculate the initial solution using the northwest-corner rule. b. Calculate improvement indices, iterate, and solve for the optimal shipping pattern. 25) Find the minimum cost solution for the transportation problem detailed in the table below. Explain carefully the meaning of any.

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24) Consider the transportation data set for a minimization problem

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Section 3 Applying the Learning Curve 1) The doubling approach to

Section 3 Applying the Learning Curve 1) The doubling approach to learning curve calculations allows us to determine the hours required for any unit. 2) The formula approach to learning curve calculations allows us to determine the hours required for any unit. 3) The learning-curve table approach may be simpler to use than.

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Section 3 Applying the Learning Curve 1) The doubling approach to

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24) Which of the following represents an unlimited queue? A) drive-through

24) Which of the following represents an unlimited queue? A) drive-through lane at a fast-food restaurant B) small barbershop with only 5 chairs for waiting customers C) toll booth serving automobiles on an interstate D) faculty office with limited seating during office hours E) restaurant with no outside seating and limited capacity due to fire.

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24) Which of the following represents an unlimited queue? A) drive-through

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Section 4 Simulation and Inventory Analysis 1) Results of simulation experiments

Section 4 Simulation and Inventory Analysis 1) Results of simulation experiments with large numbers of trials or long experimental runs will generally be better than those with fewer trials or shorter experimental runs. 2) In most real-world inventory problems, lead time and demand vary in ways that make simulation a necessity because.

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Section 4 Simulation and Inventory Analysis 1) Results of simulation experiments

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38) What Ls and Lq, as used in waiting line

38) What are Ls and Lq, as used in waiting line terminology? Which is larger, Ls or Lq? Explain. 39) What are the six assumptions underlying the M/M/1 waiting line model? Which of these also hold for the M/D/1 model? 40) You have seen that, in an M/D/1 problem, the average queue.

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38) What Ls and Lq, as used in waiting line

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50) A small manufacturer builds wooden pleasure boats in a

50) A small manufacturer builds wooden pleasure boats in a craftsman manner by traditional labor-intensive methods. The first boat is estimated to take 650 hours of skilled labor, which cost $40 per hour. They currently have three workers that can work 2,000 hours a year. They assume that there is.

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50) A small manufacturer builds wooden pleasure boats in a

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11) A distribution of service times at a waiting line

11) A distribution of service times at a waiting line indicates that service takes 6 minutes 30 percent of the time, 7 minutes 40 percent of the time, 8 minutes 20 percent of the time, and 9 minutes 10 percent of the time. In preparing this distribution for Monte Carlo.

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11) A distribution of service times at a waiting line

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Section 3 The Stepping-Stone Method 1) The stepping-stone method frequently achieves

Section 3 The Stepping-Stone Method 1) The stepping-stone method frequently achieves an optimal solution as soon as it calculates an initial feasible solution. 2) When using the stepping-stone method, the improvement index for an unused cell equals the shipping cost associated with that cell. 3) In a transportation minimization problem, the negative improvement.

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Section 3 The Stepping-Stone Method 1) The stepping-stone method frequently achieves

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46) A crew of mechanics at the Highway Department Garage

46) A crew of mechanics at the Highway Department Garage repair vehicles that break down at an average of λ = 7.5 vehicles per day (approximately Poisson in nature). The mechanic crew can service an average of μ = 10 vehicles per day with a repair time distribution that approximates.

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46) A crew of mechanics at the Highway Department Garage

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11) The second unit of production took 9 hours. If

11) The second unit of production took 9 hours. If the learning curve is 90% how long did the first unit take? A) 9 hours B) 10 hours C) 8.1 hours D) 8.5 hours E) none of the above 12) The first unit took 10 hours and the fourth unit took 8.1 hours to complete. What.

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11) The second unit of production took 9 hours. If

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11) Define simulation. 12) Identify five applications of simulation. 13) State the

11) Define simulation. 12) Identify five applications of simulation. 13) State the three-fold idea behind simulation. 14) Identify the seven steps involved in using simulation. .

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11) Define simulation. 12) Identify five applications of simulation. 13) State the

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21) The first unit of a product took 50 hours

21) The first unit of a product took 50 hours to build, and the learning curve is 80%. How long will it take to make the third unit? (Use at least three decimals in the exponent if you use the formula approach.) A) under 30 hours B) about 32 hours C) about 35.

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21) The first unit of a product took 50 hours

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Section 4 Strategic Implications of Learning Curves 1) A firm that

Section 4 Strategic Implications of Learning Curves 1) A firm that successfully pursues a steeper-than-industry-average learning curve and manages costs down may still fail if, by underestimating a strong competitor, it fails to gain the added volume necessary for the learning curve to exist. 2) On an ordinary graph, unit times for.

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Section 4 Strategic Implications of Learning Curves 1) A firm that

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Study Resources (Supply Chain Management)

Section 3 Queuing Costs 1) The cost of waiting decreases as

Section 3 Queuing Costs 1) The cost of waiting decreases as

7) Sam's hardware store has an order policy of ordering

7) Sam's hardware store has an order policy of ordering 12 gallons of a specific primer whenever 7 gallons are on hand (unless there's already an ordered delivery due). The store would like to see how well their policy works. Assume that beginning inventory in period 1 is 10 gallons.

7) Sam's hardware store has an order policy of ordering

31) Complete the following table in preparation for a Monte

31) Complete the following table in preparation for a Monte

44) Provide an example of a limited or finite population

44) Provide an example of a limited or finite population

27) Find the minimum cost solution for the transportation problem

27) Find the minimum cost solution for the transportation problem

23) What the Monte Carlo method? 24) Identify, in order, the

23) What is the Monte Carlo method? 24) Identify, in order, the five steps required to implement the Monte Carlo simulation technique. 25) Explain how Monte Carlo simulation uses random numbers. 26) Provide a small example illustrating how random numbers are used in Monte Carlo simulation. .

23) What the Monte Carlo method? 24) Identify, in order, the

46) Your company making experimental turbochargers for a new design

46) Your company making experimental turbochargers for a new design

11) Which of the following best conveys the essence of

11) Which of the following best conveys the essence of

Section 3 Monte Carlo Simulation 1) By starting random number intervals

Section 3 Monte Carlo Simulation 1) By starting random number intervals

55) A product was priced assuming an 80% learning curve.

55) A product was priced assuming an 80% learning curve. How much extra labor (in $) will be required on the 4th product if the learning curve is actually 90%? Assume that the first unit cost $100 to produce. 56) The fourth unit of production took 80 minutes while the ninth.

55) A product was priced assuming an 80% learning curve.

42) You about to undertake the manufacture of a labor-intensive

42) You are about to undertake the manufacture of a labor-intensive electronics component. The first unit took 300 hours. You are not sure whether the learning curve is 70% or 80%. The initial phase of the contract calls for 6 of these components. a. How much time will it take to.

42) You about to undertake the manufacture of a labor-intensive

22) Describe the earliest application of learning curve concepts to

22) Describe the earliest application of learning curve concepts to industry. 23) In addition to labor, to which other variables have learning curves been applied? 24) What is the basic premise underlying the learning curve? .

22) Describe the earliest application of learning curve concepts to

33) Which of the following a measure of queue performance? A)

33) Which of the following a measure of queue performance? A)

Section 1 What Is a Learning Curve? 1) Experience curves may

Section 1 What Is a Learning Curve? 1) Experience curves may

17) A queuing model that follows the M/M/1 assumptions has

17) A queuing model that follows the M/M/1 assumptions has λ = 2 and μ = 3. What is the average number of units in the system? A) 2/3 B) 1 C) 1.5 D) 2 E) 6 18) A queuing model that follows the M/M/1 assumptions has λ = 3 and μ = 2. What is.

17) A queuing model that follows the M/M/1 assumptions has

37) Your firm has a contract to make 20 specialty

37) Your firm has a contract to make 20 specialty lenses for night vision equipment. The first one took 40 hours. Learning is expected at the 85% learning curve. How long will it take to finish all 20 units? 38) Your firm has expertise with a special type of hand-finished furniture..

37) Your firm has a contract to make 20 specialty

41) Why must the service rate be greater than the

41) Why must the service rate be greater than the arrival rate in a single-server system? 42) A waiting line meeting the M/M/1 assumptions has an arrival rate of 4 per hour and a service rate of 12 per hour. What is the probability that the waiting line is empty? 43) A.

41) Why must the service rate be greater than the

27) Source A has capacity of 15, Source B has

27) Source A has capacity of 15, Source B has

27) Students arrive randomly at the help desk of the

27) Students arrive randomly at the help desk of the

7) A waiting line model meeting the assumptions of M/M/1

7) A waiting line model meeting the assumptions of M/M/1 has an arrival rate of 2 per hour and a service rate of 6 per hour. What is the utilization factor for the system? A) 0.25 B) 0.33 C) 0.50 D) 0.67 E) 3.00 8) Which one of the following is NOT a characteristic of a.

7) A waiting line model meeting the assumptions of M/M/1

13) In queuing problems, which of the following probability distributions

13) In queuing problems, which of the following probability distributions

51) A crew of mechanics at the Highway Department Garage

51) A crew of mechanics at the Highway Department Garage repair vehicles that break down at an average of λ = 8 vehicles per day (approximately Poisson in nature). The mechanic crew can service an average of μ= 11 vehicles per day with a repair time distribution that approximates an.

51) A crew of mechanics at the Highway Department Garage

Section 2 Learning Curves in Services and Manufacturing 1) The learning

Section 2 Learning Curves in Services and Manufacturing 1) The learning

Section 1 Queuing Theory 1) Waiting-line models useful to operations in

Section 1 Queuing Theory 1) Waiting-line models useful to operations in

20) What does the stepping-stone method do? 21) What the difference

20) What does the stepping-stone method do? 21) What the difference

31) To use the table of learning-curve coefficients, you must

31) To use the table of learning-curve coefficients, you must

Section 2 Advantages and Disadvantages of Simulation 1) One effective use

Section 2 Advantages and Disadvantages of Simulation 1) One effective use

11) Which of the following TRUE regarding the use of

11) Which of the following TRUE regarding the use of

12) Why do different organizations have different learning curves? 13) When

12) Why do different organizations have different learning curves? 13) When

20) When does degeneracy occur in a transportation model? 21) When

20) When does degeneracy occur in a transportation model? 21) When

Section 4 Special Issues in Modeling 1) Degeneracy in a transportation

Section 4 Special Issues in Modeling 1) Degeneracy in a transportation problem is when no closed path exists for evaluating an unused cell. 2) A transportation problem with a total supply of 500 and a total demand of 400 will have an optimal solution that leaves 100 units of supply unused. 3) A.

Section 4 Special Issues in Modeling 1) Degeneracy in a transportation

11) Consider the transportation problem and its optimal solution in

11) Consider the transportation problem and its optimal solution in

11) A transportation problem has 4 origins and 2 destinations.

11) A transportation problem has 4 origins and 2 destinations.

28) Explain the difference between random numbers and random number

28) Explain the difference between random numbers and random number