Q & A - Statistics

Q & A

• There is concern about the speed of automobiles traveling over a particular stretch of highway. For a random sample of 28 automobiles radar indicated the following speeds, in miles per hour There is concern about the speed of automobiles traveling over a particular stretch of highway. For a random sample of 28 automobiles, radar indicated the following speed...
• A clinic offers a weight-loss program A review of its records found the following amounts of weight loss, in pounds for a random sample of 24 of its clients at the conclusion of a 4-month program A clinic offers a weight-loss program. A review of its records found the following amounts of weight loss, in pounds, for a random sample of 24 of its clients at the conc...
• Twenty people in one large metropolitan area were asked to record the time in minutes) that it takes them to drive to work These times were as follows Twenty people in one large metropolitan area were asked to record the time (in minutes) that it takes them to drive to work. These times were as follows:30423540452232154...
• The following data represent the number of passengers per flight in a random sample of 20 flights from Vienna Austria, to Cluj-Napoca Romania with a new airline The following data represent the number of passengers per flight in a random sample of 20 flights from Vienna, Austria, to Cluj-Napoca, Romania, with a new airline:636594...
• An auditor, examining a total of 820 accounts receivable of a corporation took a random sample of 60 of them The sample mean was $127.43 and the sample standard deviation was An auditor, examining a total of 820 accounts receivable of a corporation, took a random sample of 60 of them. The sample mean was $127.43, and the sample standard deviat...
• The data in the table below represent time study observations for a woodworking operation. a. Based on the observations determine the standard time for the operation assuming an The data in the table below represent time study observations for a woodworking operation.a.    Based on the observations, determine the standard time for the operation, ...
• Given these observed times in minutes for five elements of a job determine the observed time OT for each element Note Some of the elements occur only periodically Given these observed times (in minutes) for five elements of a job, determine the observed time (OT) for each element. Note: Some of the elements occur only periodically....
• An analyst has timed a metal-cutting operation for 50 cycles The average time per cycle was 10.40 minutes, and the standard deviation was 1.20 minutes for a worker with a performance rating of An analyst has timed a metal-cutting operation for 50 cycles. The average time per cycle was 10.40 minutes, and the standard deviation was 1.20 minutes for a worker with ...
• What are motion study principles How are they classified 8 Name some reasons why methods analyses are needed How is methods analysis linked to productivity improvements What are motion study principles? How are they classified?8.    Name some reasons why methods analyses are needed. How is methods analysis linked to produc- tivity improv...
• Ten labs will be assigned to the circular layout show Recalling a similar layout’s congestion in the halls, the new lab manager has requested an assignment that will minimize traffic between office Ten labs will be assigned to the circular layout shown. Recalling a similar layout’s congestion in the halls, the new lab manager has requested an assignment that will mi...
• Eight work centers must be arranged in an L-shaped building The locations of centers 1 and 3 are assigned as shown in the accompanying diagram Assuming transportation costs are $1 per load per meter Eight work centers must be arranged in an L-shaped building. The locations of centers 1 and 3 are assigned as shown in the accompanying diagram. Assuming transportation c...
• Determine the placement of departments for a newly designed facility that will minimize total transportation costs using the data in the following tables Assume that reverse distances are the same A. Determine the placement of departments for a newly designed facility that will minimize total transportation costs using the data in the following tables. Assume that ...
• Arrange six departments into a 2 X 3 grid so that these conditions are satisfied 1 close to 2 5 close to 2 and 6 2 close to 5 and 3 not close to Arrange six departments into a 2 X 3 grid so that these conditions are satisfied: 1 close to 2, 5 close to 2 and 6, 2 close to 5, and 3 not close to 1 or 2.10.           ...
• A shop works a 400-minute day. The manager of the shop wants an output of 200 units per day for the assembly line that has the elemental tasks shown in the table. Do the following A shop works a 400-minute day. The manager of the shop wants an output of 200 units per day for the assembly line that has the elemental tasks shown in the table. Do the ...
• As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 240 units per eight-hour day As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 240 unit...
• A manager wants to assign tasks to workstations as efficiently as possible and achieve an hourly out- put of 4 units The department uses a working time of 56 minutes per hour Assign the tasks shown A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly out- put of 4 units. The department uses a working time of 56 minutes pe...
• A manager wants to assign tasks to workstations as efficiently as possible and achieve an hourly output of 331⁄3 units Assume the shop works a 60-minute hour Assign the tasks shown in the A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 331⁄3 units. Assume the shop works a 60-minute hour. Assign th...
• According to a study by the Alliance of American Insurers it costs more than three times the original purchase price in parts and labor to reconstruct a wrecked Chevrolet Explain the reasons for According to a study by the Alliance of American Insurers, it costs more than three times the origi- nal purchase price in parts and labor to reconstruct a wrecked Chevro...
• The City Transportation Planning Committee must decide whether to begin a long-term project to build a subway system or to upgrade the present bus service Suppose you are an expert in fixed-path The City Transportation Planning Committee must decide whether to begin a long-term project    to build a subway system or to upgrade the present bus service. Suppose you...
• Briefly describe the two main layout types 10 What are the main advantages of a product layout The main disadvantages 11 What are the main advantages of a process layout   Briefly describe the two main layout types.10.   What are the main advantages of a product layout? The main disadvantages?11.   What are the main advantages of a proces...
• The director of social services of a county has learned that the state has mandated additional infor- mation requirements This will place an additional burden on the agency The director of social services of a county has learned that the state has mandated additional infor- mation requirements. This will place an additional burden on the age...
• A logistics provider plans to have a new warehouse built to handle increasing demands for its services. Although the company is unsure of how much demand there will be it must decide now on the size A logistics provider plans to have a new warehouse built to handle increasing demands for its services. Although the company is unsure of how much demand there will be, i...
• Determine the course of action that has the highest EMV for the accompanying tree diagram Determine the course of action that has the highest EMV for the accompanying tree diagram.1/306090404460(45)45994050304050
• Construct a graph that can be used for sensitivity analysis for the preceding problem a How sensitive is the solution to the problem in terms of the probability estimate of Construct a graph that can be used for sensitivity analysis for the preceding problem.a.    How sensitive is the solution to the problem in terms of the probability estim...
• Refer to Problem 6 Suppose that the management of Theme Park Inc has decided that there is a .35 probability that the motel’s application will be approved a If management uses maximum Refer to Problem 6. Suppose that the management of Theme Park, Inc., has decided that there is  a.35 probability that the motel’s application will be approved.a.    If ma...
• The following diagram describes a process that consists of eight separate operations with sequen- tial relationships and capacities units per hour as shown a What is the current capacity The following diagram describes a process that consists of eight separate operations, with sequen- tial relationships and capacities (units per hour) as shown.a.   What i...
• The manager of a car wash must decide whether to have one or two wash lines One line will mean a fixed cost of $6000 a month and two lines will mean a fixed cost of $10500 a month Each line The manager of a car wash must decide whether to have one or two wash lines. One line will mean a fixed cost of $6,000 a month, and two lines will mean a fixed cost of $1...
• A manager must decide how many machines of a certain type to purchase Each machine can pro- cess 100 customers per day One machine will result in a fixed cost of $2000 per day while two machines A manager must decide how many machines of a certain type to purchase. Each machine can pro- cess 100 customers per day. One machine will result in a fixed cost of $2,000...
• A manager is trying to decide whether to purchase a certain part or to have it produced internally Internal production could use either of two processes One would entail a variable cost of A manager is trying to decide whether to purchase a certain part or to have it produced internally. Internal production could use either of two processes. One would entai...
• A small firm intends to increase the capacity of a bottleneck operation by adding a new machine. Two alternatives A and B have been identified and the associated costs and revenues have been A small firm intends to increase the capacity of a bottleneck operation by adding a new machine. Two alternatives, A and B, have been identified, and the associated costs...
• What are some capacity measures for each of the following a University b Hospital c. Computer repair shop d Farm 17 What is the benefit to a business organization of having  What are some capacity measures for each of the following?a.   Universityb.   Hospitalc.   Computer repair shopd.   Farm17.         What is the benefit to a business org...
• How can a systems approach to capacity planning be useful 10 How do capacity decisions influence productivity 11 Why is it important to match process capabilities with product How can a systems approach to capacity planning be useful?10.         How do capacity decisions influence productivity?11.         Why is it important to match process ca...
• A manager must decide between two machines The manager will take into account each machine’s operating costs and initial costs and its breakdown and repair times Machine A has a projected average A manager must decide between two machines. The manager will take into account each machine’s operating costs and initial costs, and its breakdown and repair times. Machi...
• A machine can operate for an average of 10 weeks before it needs to be overhauled a process which takes two days The machine is operated five days a week Compute the availability of this machine A machine can operate for an average of 10 weeks before it needs to be overhauled, a process which takes two days. The machine is operated five days a week. Compute the a...
• A manufacturer of programmable calculators is attempting to determine a reasonable free-service period for a model it will introduce shortly The manager of product testing has indicated that the A manufacturer of programmable calculators is attempting to determine a reasonable free-service period for a model it will introduce shortly. The manager of product testi...
• An electronic chess game has a useful life that is exponential with a mean of 30 months. Determine each of the following a The probability that any given unit will operate for at least An electronic chess game has a useful life that is exponential with a mean of 30 months. Determine each of the following:a.   The probability that any given unit will ope...
• Refer to the previous problem a Assume that the single switch used in plan 1 is 98 percent reliable while reliabilities of the machines remain the same. Recalculate the reliability of plan Refer to the previous problem.a.    Assume that the single switch used in plan 1 is 98 percent reliable, while reliabilities of the machines remain the same. Recalculate ...
• Refer to the previous problem a Assume that the single switch used in plan 1 is 98 percent reliable while reliabilities of the machines remain the same. Recalculate the reliability of plan Refer to the previous problem.a.    Assume that the single switch used in plan 1 is 98 percent reliable, while reliabilities of the machines remain the same. Recalculate ...
• A production line has three machines A B and C with reliabilities of .99 96 and 93 respec- tively. The machines are arranged so that if one breaks down the others must shut down A production line has three machines A, B, and C, with reliabilities of .99, .96, and .93, respec- tively. The machines are arranged so that if one breaks down, the other...
• A product engineer has developed the following equation for the cost of a system component: C = (10P)2, where C is the cost in dollars and P is the probability that the component will operate as A product engineer has developed the following equation for the cost of a system component: C = (10P)2, where C is the cost in dollars and P is the probability that the c...
• A product is composed of four parts In order for the product to function properly in a given situation each of the parts must function Two of the parts have a 96 probability of functioning A product is composed of four parts. In order for the product to function properly in a given situation, each of the parts must function. Two of the parts have a .96 prob...
• Refer to Figure 4.4 What two technical requirements have the highest impact on the customer requirement that the paper not tear b The following table presents technical requirements and customer Refer to Figure 4.4. What two technical requirements have the highest impact on the customer requirement that the paper not tear?b. The following table presents technical...
• List the steps involved in getting gasoline into your car for full service and for self-service. Assume that paying cash is the only means of payment For each list identify the potential trouble List the steps involved in getting gasoline into your car for full service and for self-service. Assume that paying cash is the only means of payment. For each list, iden...
• Give two examples of unethical conduct involving product or service design and the ethical prin- ciples see Chapter 1 that are violated 1 Examine and compare one of the following  Give two examples of unethical conduct involving product or service design and the ethical prin- ciples (see Chapter 1) that are violated.1.           Examine and compar...
• Give two examples of unethical conduct involving product or service design and the ethical prin- ciples see Chapter 1 that are violated 1 Examine and compare one of the following  Give two examples of unethical conduct involving product or service design and the ethical prin- ciples (see Chapter 1) that are violated.1.           Examine and compar...
• Describe some of the trade-offs that are encountered in product and service design 2 Who needs to be involved in the design of products and services   Describe some of the trade-offs that are encountered in product and service design.2.    Who needs to be involved in the design of products and services?3.    How has t...
• What is meant by the term life cycle Why would this be a consideration in product or service design Why is R&D a key factor in productivity improvement Name some ways What is meant by the term life cycle? Why would this be a consideration in product or service design?9.      Why is R&D a key factor in productivity improvement? Name som...
• A manager uses this equation to predict demand for landscaping services Ft 10 5t Over the past eight periods demand has been as follows A manager uses this equation to predict demand for landscaping services: Ft = 10 5t. Over the past eight periods, demand has been as follows:Period, t:12345678Demand:152...
• A manager has just received an evaluation from an analyst on two potential forecasting alternatives. The analyst is indifferent between the two alternatives saying that they should be equally A manager has just received an evaluation from an analyst on two potential forecasting alternatives. The analyst is indifferent between the two alternatives, saying that ...
• A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years Year A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years:Year:123456789Sales (000):40.244.548.052.355.857....