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49) Use the graphical technique to find the optimal solution for this objective function and associated constraints. Maximize:Z=8A + 5B Subject To: Constraint 14A + 5B < 80 Constraint 27A + 4B < 120 A, B > 0 a. Graph the problem fully in the following space. Label the axes carefully, plot the constraints, shade.
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44) What are the assumptions of linear programming? Provide examples of each. 45) What is the meaning of a slack or surplus variable? 46) Briefly describe the meaning of a shadow price. Provide an example of how a manager could use information about shadow prices to improve operations? 47) Provide.
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G.1  End-of-Chapter Problems 1) Simulation is the process of reproducing the behaviour of a system using a model that describes the processes of the system. 2) Time compression is the feature of simulation that allows managers to obtain operating-characteristic estimates in much less time than is required to gather the same.
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H.1  End-of-Chapter Problems 1) The economic production lot size represents the maximum quantity of on-hand inventory for a manufacturer. 2) For analysis using the economic production lot size (ELS) model to be useful, the producer must be able to produce the item faster than it is consumed. 3) When facing quantity.
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31) In computing a multifactor measure of productivity, the inputs can be measured in different units such as dollars, labour hours, volume of materials used, etc. 32) An increase in the value of the Canadian dollar relative to other currencies lessens the pressure on manufacturing companies based in Canada to consider.
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81) A work-sampling method is used to determine the proportion of the time a worker is idle. The following information was gathered on a random basis. Day No. Times Clerk Idle Total No. Observations Monday Tuesday Wednesday Thursday 8 8 7 7 26 32 28 34 If the manager wants a 95 percent confidence level and a degree of precision of ± 0.03, how many MORE.
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31) What is the difference between a waiting-line model as described in Supplement C and a simulation model of a waiting-line problem? 32) What is meant by time compression in a simulation model? 33) What are the motivations for using simulation for analyzing processes? 34) Why is simulation considered the method.
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F.1  End-of-Chapter Problems 1) Acceptance sampling is an inspection procedure used to determine whether to accept or reject a specific quantity of material. 2) As more firms initiate total quality management systems, the need for acceptance sampling will increase. 3) The lot tolerance proportion defective (LTPD) is the customer's desired level.
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Table I.1 n Producer's Risk (p = AQL) Consumer's Risk (p = LTPD) 60 80 100 120 0.122 0.191 0.264 0.332 0.126 0.048 0.017 0.006   70) A single-sampling plan by attributes is needed for a purchased component. Table I.1 is above. Sample size = 100 Acceptance number (c) = 2 Acceptance quality level (AQL) = 0.01 Lot tolerance proportion defective (LTPD) = 0.04 Given the preceding information: a.What is the producer's risk, α? b.What is.
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54) The Really Big Shoe Company is a manufacturer of basketball shoes and football shoes. Ed Sullivan, the manager of marketing, must decide the best way to spend advertising resources. Each football team sponsored requires 120 pairs of shoes. Each basketball team requires 32 pairs of shoes. Football coaches receive.
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91) What are the advantages and disadvantages of establishing and enforcing work standards? 92) Are time standards more useful for manufacturing or service processes? Why? 93) How can work standards be developed for higher level services and creative processes? 94) What are the four steps in a time study? 95).
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31) As the cumulative number of units produced becomes large A) the learning effect is more noticeable. B) the learning effect increases. C) the learning effect is less noticeable. D) the learning effect decreases. 32) Which statement regarding the effect of automating some of the direct labor in a process is.
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E.1  End-of-Chapter Problems 1) Computer-integrated manufacturing (CIM) is an umbrella term for the total integration of product design and engineering, process planning, and manufacturing by means of complex computer systems. 2) CAM is an electronic system for designing new parts or products or altering existing ones. 3) Numerically controlled machines are.
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49) Describe the impact a CAD/CAM system has on a manufacturer's ability to compete on quality, cost, flexibility and time. 50) Which computer-aided function, CAD or CAM, has resulted in the greatest productivity boost for manufacturers? 51) Briefly describe two types of flexible automation for materials handling. 52) What are.
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21) Which of the following statements regarding technological choice is best? A) An FMS generally integrates workstations with a computer-controlled transport system for moving materials and parts. B) A numerically controlled machine is a very efficient technology, particularly for a high-volume production process. C) FMS is the most attractive technology.
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56) A small oil company has a refining budget of $200,000 and would like to determine the optimal production plan for profitability. The following table lists the costs associated with its three products. Product Refining Budget ($ per unit of output) Marketing Budget ($ per unit of output) Material Availability (gallons of crude per unit of output) Gasoline Heating.
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41) ________ are large machine tools programmed to produce small- to medium-sized batches of intricate parts. 42) ________ are stand-alone pieces of equipment, each controlled by its own microcomputer. 43) ________ are versatile, computer-controlled machines programmed to perform various tasks. 44) ________ is the process of moving, packaging, and storing.
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D.1  End-of-Chapter Problems 1) The learning effect can be represented by a line called a learning curve. 2) The first learning curve was developed by the aircraft industry. 3) The simpler the product, the more pronounced the learning rate. 4) Learning curves provide their greatest advantage in the early stages of.
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I.1  End-of-Chapter Problems 1) Linear programming is useful for allocating scarce resources among competing demands. 2) A constraint is a limitation that restricts the permissible choices. 3) Decision variables are represented in both the objective function and the constraints while formulating a linear program. 4) A parameter is a region that.
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65) Discuss the two incorrect conclusions that can be made when using acceptance sampling. 66) If you were interested in minimizing the average number of items inspected, which sampling plan would you choose? Why? 67) Why is an operating-characteristic (OC) curve useful? 68) Relative to an acceptance sampling plan, what.
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1.1  End-of-Chapter Problems 1) A process involves transforming inputs into outputs. 2) Inputs to a process can include human resources. 3) Processes of multiple firms can be linked together to form a chain reaction. 4) Every process has a customer. 5) A nested process refers to a process within a process. 6) Operations management refers to.
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97) A pilot work study has been conducted on a new operation with four work elements. The following times, in seconds, were obtained using the continuous method. Observations Element 1 2 3 4 5 RF 1 11.00 45.00 80.00 117.00 153.00 1.10 2 20.00 54.00 89.00 125.00 161.00 1.05 3 25.00 58.00 95.00 131.00 166.00 0.85 a. What is the normal time for this operation? b. If an allowance of 20 percent is used, what is the standard time for.
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11) Which one of the following relationships is correct? A) Decision variables reflect the value of uncontrollable variables. B) Dependent variables reflect the value of decision and uncontrollable variables. C) Uncontrollable variables reflect the value of decision variables. D) Uncontrollable variables reflect the values of dependent variables. 12) A number.
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