The Donaldson Furniture Companyproduces three types of rocking chairs:the children's model, the standard model,and the executive model. Each chair ismade in three stages:cutting, construction, and finishing.StageCuttingConstructionFinishingChildren's Standard Executive7 hr5 hr4 hr3 hr2 hr5 hr2 hr2 hr4 hrThe time needed for each stage of each chair is given in the chart. During a specific weekthe company has available a maximum of 134 hours for cutting, 82 hours for construction,and 66 hours for finishing. Determine how many of each type of chair the company shouldmake to be operating at full capacity.The number of executive chairs the company should make is

Objective Functions and Constraints: Based on the given details, the objective…

Answered: The Donaldson Furniture Company…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Data Products, Inc., packages and distributes a variety ofpersonal computer-related products. A time study hasbeen conducted for a job packaging 3.5-inch personalcomputer diskettes for shipment to customers. The jobrequires a packager to place 20 diskettes in a rectangularplastic bag, close the bag with a twist tie, and place thefilled bag into a bin, which is replaced by another workerwhen it is filled. The job can be broken into four basic elements. The elemental times (in minutes) were ob-tained from the time study for 10 job cycles shown in the following table. a. Using an allowance factor of 16%, determine the stan-dard time for this job. b. Determine the number of cycles for this time studysuch that the company would be 95% confident that theaverage time from the time study is within 4% of thetrue average cycle time.
A company is setting up an assembly line to produce 90 units per hour. The table below identifies the work elements, times, and immediate predecessors. Work Element Time (Sec.) Immediate Predecessor(s) A 25 - B 18 A C 20 A D 5 B, C E 12 C F 8 E G 16 D, F H 12 G Use one of the heuristic decision rules described in Table below to balance the assembly line so that it will produce 90 units per hour. Clearly state the decision rule you use and complete the below table using the selected rule. Decision Rule Logic Longest work element Picking the candidate with the longest time to complete is an effort to fit in the most difficult elements first, leaving the ones with short times to “fill out” the station. Shortest work element This rule is the opposite of the longest work element rule because it gives preference in workstation assignments to those work elements that are quicker. It can be tried…
Tasty Tim’s Tasty Tim’s is a specialty taco restaurant. The following tasks are required for the successful assembly of a Tasty taco (times are in seconds per taco): Chop and trim meat – 30 Chop vegetables – 20 Grill meat – 240 Grill vegetables – 180 Prepare toppings - Lettuce - 10 - Tomato - 15 - Guacamole - 40 Assemble taco - Add meat - 5 - Add vegetables - 5 - Add cheese - 5 - Add toppings - 10 Wrap taco - 20 During the lunch hour, Tasty Tim’s encounters demand for 120 tacos. What is the labor content of one of Tasty Tim’s tacos?
Tasty Tim’s Tasty Tim’s is a specialty taco restaurant. The following tasks are required for the successful assembly of a Tasty taco (times are in seconds per taco): Chop and trim meat – 30 Chop vegetables – 20 Grill meat – 240 Grill vegetables – 180 Prepare toppings - Lettuce - 10 - Tomato - 15 - Guacamole - 40 Assemble taco - Add meat - 5 - Add vegetables - 5 - Add cheese - 5 - Add toppings - 10 Wrap taco - 20 During the lunch hour, Tasty Tim’s encounters demand for 120 tacos. A) What is the labor content of one of Tasty Tim’s tacos? B) What is the Takt time (in seconds/unit) takt time for Tasty Tim’s taco shop? C) In an ideal world, how many workers should Tim hire to make tacos? D) During off-peak afternoon hours, demand at Tasty Tim’s drops to 40 tacos each hour. How many employees should Tim schedule to work during the afternoon? Again, ignore any effects of idle time or inefficiency due to poor line balancing.
The following are the car repair shop data: Ticket No. Work Ticket No. Work Ticket No. Work 1 Tires 11 Lube & oil 21 Lube & oil 2 Brakes 12 Lube & oil 22 Tires 3 Tires 13 Tires 23 Lube & oil 4 Brakes 14 Brakes 24 Lube & oil 5 Tires 15 Transmission 25 Lube & oil 6 Lube & oil 16 Battery 26 Tires 7 Brakes 17 Lube & oil 27 Battery 8 Brakes 18 Lube & oil 28 Lube & oil 9 Lube & oil 19 Brakes 29 Brakes 10 Battery 20 Lube & oil 30 Tires Click here for the Excel Data File Problem 9-1 Part a (Algo) a. Prepare a check sheet for the above car repair shop data:
A company assembles a product that consists of three pieces called AA, BB, and CC. The AA and BB parts are manufactured by the company itself, while the CC parts are purchased from another manufacturer. The process times, in hours, required for each piece in each of the processes are given in the following table: Process 1 Process 2 Process 3 Process 4 Process 5 AA 1 0.5 0.5 BB 1.5 0.5 0.5 0.5 The company has 20 machines that can carry out process 1, 5 process 2, 10 process 3, 5 process 4 and 5 process 5. Each machine works a maximum of five days each week at a rate of fifty weeks a year , in working days of 8 hours a day. Formulate and solve to determine the maximum number of assembled sets that you can produce.
Personnel Planning; TDABC Recent competitive pressures have caused National InsuranceCompany to examine policies regarding personnel planning. As a start, the company has decided toexperiment with and develop a time-driven ABC model for its claims processing center.A study of this support center indicates the following three primary activities: remote processingof customer claims, 0.5 hour; onsite processing of customer claims, 1.0 hour; and updating/maintaining customer records, 0.2 hour. Onsite processing is required for larger claims, while remote processing is done for smaller claims. (For onsite processing, assume—for simplicity—that the claimsprocessors use their own automobiles.) All claims will require that the customers’ records be updated.The claims processing center currently employs three full-time employees. Total annual cost ofthe center (salaries, depreciation, utilities, etc.) is estimated at $255,000. The net amount of availablepersonnel time per year for this…
local market research fim has just won a contract for several thousand small projects involving data gathering and statistical analysis. In the past, the firm has assigned each project to a single member of its highly trained professional staff. This person would both gather and analyze the data Using this approach, an experienced person can complete an average of 10 such projects in an eight-hour day. The firm's management is thinking of assigning two people to each project in order to allow them to specialize and become more efficient The process would require the data gatherer to fill out a matrix on the computer, check it and transmit it to the statistical analysis program for the analyst to complete. Data can be gathered on one project while the analysis is being completed on another, but the analysis must be complete before the statistical analysis program can accept the new data. After some practice, the new process can be completed with a standard time of 20 minutes…
ABC Solutions is a traditional company in textile industrywith a combined workforce of 150 staff. Due to increased levels of competition, this company is now increasingly finding it difficult to compete – especially as the larger companies seem to be a little more innovative, agile and responsive to client requirements. Management have noticed that staff, especially the highly skilled ones, are now leaving the company to seek work elsewhere (in these larger companies). This has meant appointing new staff and undertaking a considerable amount of re-training to replace those that have left the company. Apart from impacting on core business operations, ABC Solutions has started witnessing a drop in its profit margin. Given this position, senior management at ABC Solutions have decided to implement a performance measurement tool (PMT) that would allow them to align the strategic, management and operational requirements of the business. They are therefore considering the adoption of the…
What written materials should the supervisor provide for new letter carriers in light of what Carol Burgess already provides? Carol Burgess is a letter carrier and a part-time trainer of letter carriers for the U.S. Postal Service in a major city on the west coast. She trains all new letter carriers in her service area, which encompasses the northern half of her state. Over the past five years she has trained 318 new letter carriers. Typically,the training is offered prior to the new letter carrier’s entry onto the job, although sometimes it occurs shortly thereafter.The training program typically encompasses both the orientation of new employees to the U.S. Postal Service and the development of specific skills needed by the new letter carrier. The latter involves practice in casing mail (i.e., sorting) to appropriate locations of a case in preparation for delivery,reading maps, determining appropriate sequencing of delivery, and customer relations. The total training program takes…
The Union Manufacturing Company is producing two types of products: A and B. The demand forecasts, batch size, and time standards follow: Demand forecast (units/yr) Product A Product B 1,000 4,000 Batch size (units/batch) Processing time (hr/unit) 20 10 3.2 4.5 Setup time (hr/batch) 10 20 Both products are produced on the same machine, called Mark I. 11) Using Table 4.1, what is the total number of hours required of Mark I equipment for the next year? A) fewer than 29,000 hours B) between 29,000 and 30,000 hours C) between 30,000 and 31,000 hours D) more than 31,000 hours
In a 50 bedded hospital a housekeeping team member’s task is to change linens every day across all the beds. This task is routine. She goes to the storage area for fresh linens on her floor and finds none. She goes to another floor, and perhaps another, and ultimately finds them, then returns to the task she was trying to accomplish in the first place. At the end of the shift, however, others would bet that this Team Member would not able to get everything done. Or she had to hurry to complete changeover across all the beds. Perhaps, the work left undone would invariably pass to someone else and would disrupt their work. How do you relate this case to types of waste in lean management or Kaizen? One basic concept of TQM is unwavering customer orientation or focus on customers both internal and external”- Explain

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