Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 2, Problem 19P
A
Summary Introduction
Interpretation: The duration the worker is working based on the provided preliminary results should be determined.
Concept Introduction: In order to find out the productivity, improve standards and contribute allowances for increasing the productivity, work sampling method is followed.
B
Summary Introduction
Interpretation: Based on the result from part A, supposing the result is excessive, some supportive factors should be provided.
Concept Introduction: In order to find out the productivity, improve standards and contribute allowances for increasing the productivity, work sampling method is followed.
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Compare stopwatch time study and work sampling.
Describe the steps involved in conducting a work sampling study.
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…
Chapter 2 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Ch. 2 - Prob. 3DQCh. 2 - Prob. 4DQCh. 2 - Consider the range of processes in the financial...Ch. 2 - Prob. 6DQCh. 2 - Continuous improvement recognizes that many small...Ch. 2 - Prob. 8DQCh. 2 - Paul O’Neill, former U.S. Treasury Secretary,...Ch. 2 - Dr. Gulakowicz is an orthodontist. She estimates...Ch. 2 - Two different manufacturing processes are being...Ch. 2 - The operations manager at Sebago Manufacturing is...
Ch. 2 - Consider the Custom Molds, Inc., case at the end...Ch. 2 - Founded in 1970, ABC is one of the world’s...Ch. 2 - Prepare a flowchart of the field service division...Ch. 2 - Big Bob’s Burger Barn would like to graphically...Ch. 2 - Prob. 10PCh. 2 - Suppose you are in charge of a large mailing to...Ch. 2 - Diagrams of two self-service gasoline stations,...Ch. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - A time study of an employee assembling peanut...Ch. 2 - Prob. 18PCh. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Smith, Schroeder, and Torn (SST) is a short-haul...Ch. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 1AMECh. 2 - What percentage of overall complaints do the three...Ch. 2 - Prob. 3AMECh. 2 - Prob. 1VCCh. 2 - What are the benefits that the POI program can...Ch. 2 - Prob. 3VCCh. 2 - What are the major issues facing Tom and Mason...Ch. 2 - Prob. 1.2CCh. 2 - Prob. 1.3CCh. 2 - Prob. 2.1CCh. 2 - Prob. 2.2CCh. 2 - Prob. 2.3C
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- What role does data collection and analysis play in work measurement?arrow_forwardWhat are the trade offs in choosing between time study and work sampling for work measurement.arrow_forwardTOYS AND JOB DESIGN AT THE HOVEY AND BEARD COMPANY The following is a situation that occurred in the Hovey and Beard Company, as reported by J. V. Clark. This company manufactured a line of wooden toys. One part of the process involved spray painting partially assembled toys, after which the toys were hung on moving hooks that carried them through a drying oven. The operation, staffed entirely by women, was plagued with absenteeism, high turnover, and low morale. Each woman at her paint booth would take a toy from the tray beside her, position it in a fixture, and spray on the color according to the required pattern. She then would release the toy and hang it on the conveyor hook. The rate at which the hooks moved had been calculated so that each woman, once fully trained, would be able to hang a painted toy on each hook before it passed beyond her reach. The women who worked in the paint room were on a group incentive plan that tied their earnings to the…arrow_forward
- If an average worker could be identified, what advantage would there be in using that person for a time studyarrow_forwardDetermine the standard time of the process using the below-recorded observations. Hint: remove unusual time observationsarrow_forwardWhat is ergonomics and why is it important in job design?arrow_forward
- What are the trade-offs in the following?A. Choosing between time study and work sampling for work measurementarrow_forwarddetermine, What role does data collection and analysis play in work measurement?arrow_forwardHow reliable is the result of work sampling activity in determining working time and idle time of the operator?arrow_forward
- (a) What is a technique for estimating the percent of the time a worker spends on various tasks? A) stopwatch time study B) simultaneous motion study C) work sampling D) standard elemental (historical) times E) predetermined (published) time standards (b) A bank manager wants to determine the percent of the time the bank's tellers are working and idle. He decides to use work sampling, and his initial estimate is that the tellers are idle 22% of the time. Approximately how many observations should be taken to be 95% confident that the results will not be more than 5% away from the true result? A)6 B) 16 C) 203 D) 264 E) 246arrow_forwardGive other examples or illustrations of work sampling studies.arrow_forwardA worker-machine operation was found to involve 3.3 minutes of machine time per cycle in the course of 40 cycles of stopwatch study. The worker's time-averaged 1.9 minutes per cycle, and the worker was given a rating of 120% (machine rating is 100%). Midway through the study, the worker took a 10-minute rest break. Assuming an allowance factor of 12% of work time, determine the standard time for this job. Hints: you should consider both machine time and machine time together. Also, Allowance only applies to the man, not a machine.arrow_forward
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