Operations Management: Sustainability And Supply Chain Management Custom Edition For Temple University, Version 3
11th Edition
ISBN: 9781269383578
Author: HEIZER
Publisher: PEARSON
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Question
Chapter 10, Problem 27P
Summary Introduction
To determine: The number of observations required.
Introduction: Thesample size is required to determine the number of observations that are necessary to find the true cycle time.
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Determine the number of observations that would be required to estimate the mean time for the first element within 4 percent of the true value with a confidence of 98 percent.
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Q15. How the performance on a task is evaluated?
Chapter 10 Solutions
Operations Management: Sustainability And Supply Chain Management Custom Edition For Temple University, Version 3
Ch. 10 - Prob. 1DQCh. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Prob. 4DQCh. 10 - Prob. 5DQCh. 10 - Prob. 6DQCh. 10 - Prob. 7DQCh. 10 - Prob. 8DQCh. 10 - Prob. 9DQCh. 10 - Prob. 10DQ
Ch. 10 - Prob. 11DQCh. 10 - Prob. 12DQCh. 10 - Prob. 13DQCh. 10 - Prob. 14DQCh. 10 - Prob. 1PCh. 10 - Draw an activity chart for a machine operator with...Ch. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 38PCh. 10 - Prob. 1CSCh. 10 - Prob. 2CSCh. 10 - Prob. 3CSCh. 10 - Prob. 4CSCh. 10 - Prob. 1VCCh. 10 - Prob. 2VCCh. 10 - Prob. 3VCCh. 10 - Prob. 4VC
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- Question 2 Mr Letsomane is the supervisor in fast growing company that manufactures and assembles office furniture. Since the inception of the company, they have been using job specialisation to accomplish their tasks. However, of late there have been delays in finished goods, morale is low and returns have increased. Explain to Mr Letsomane the advantages and disadvantages of job specialisation and further discuss with him the three methods of job design that can help reverse the problems caused by job specialisation.arrow_forwardHow to Work sampling compared with stopwatch time study?arrow_forwardAfter training, Mary Fernandez, a computer tech-nician, had an average observed time for memory-chip tests of 12 seconds. Mary’s performance rating is 100%. The firm has apersonal fatigue and delay allowance of 15%.a) Find the normal time for this process.b) Find the standard time for this process.arrow_forward
- Describe work sampling and perform calculations.arrow_forwardThe war between Ukraine and Russia has placed additional demands on the planning and operation departments to increase oil output. To meet deadlines, the departments proposed that the training be deferred until next year, in order to meet increased demands. Should there be an accident, list 1 measure that the training would have mitigated against, in this circumstance, for both departments.arrow_forwardHow can the time for a machine operator be classified,Turns between each job and often between work Go for stock, off the machine?arrow_forward
- 5. The manager of Asombrado Bounty Office, Charles Badillo, estimates his employees are idle 25%of the time. With that problem, how many work samples are needed to consider within 3%accuracy and have 95.45% confidence level. 6. At ASP Micro Manufacturing, Inc. workers press semiconductor into predrilled slots on printed-circuit boards. Determine the normal time of the operation in seconds. The elemental motions for normal time used by the company are as follows:• Reach 6 inches for semiconductors 10.5 TMU• Grasp the semiconductors 8.0 TMU• Move semiconductor to printed-circuit board 9.5 TMU• Position semiconductor 20.1 TMU• Press semiconductor into slots 20.3 TMU• Move board aside 15.8 TMU 7. The semiconductor used in Costin Calculator has 5 components with the consistency of 90%, 95%,98%, 90%, and 99%, respectively. How reliable is one product of calculator?arrow_forwardIf an average worker could be identified, what advantage would there be in using that person for a time study? What are some reasons why an average worker might not be studied. Explainarrow_forwardThe operator drops a part, which you pick up and handto him. Does this make any difference in a time study? Ifso, how?arrow_forward
- A Methods and Measurements Analyst needs to develop a time standard for a certain task. The task involves use of a ruler, square, and portable electric saw to mark and cut the "notch" in a rafter (a standard carpentry task of home construction). In a preliminary study, he observed one of his workers performing this task five times. The observations were made in an air-conditioned, well-lit training facility, at ground level, with all tools and equipment clean and readily available. Observation: 1 2 3 4 5 Task time (seconds): 82 74 80 88 76 (a) What is the actual average time for this task? (b) What is the normal time for this task if the employee worked at a 10% faster pace than is typical for adequately trained workers? (c) What is standard time for this task if allowances sum to 12%? (d) If the analyst then thought more carefully about his experiment and decided that the allowances needed to be increased to match the real (outside, not…arrow_forwardJob design determinations an employee’s work-related responsibilities. The point of departure when designing jobs for employees is to determine the level of specialisation. Write an explanation of not longer than one to one-and-a-half pages on job specialisation which include the following aspects (with suitable examples to support your answer): 1. What is job specialisation? 2. What is the purpose of job specialisation? 3. What are the limitations and benefits of job specialisation?arrow_forwardQuestion text Which of the following detail the exact manner in which any work is to be performed? a. Methods b. Procedures c. Programmes d. Purposearrow_forward
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