Operations Management
14th Edition
ISBN: 9781260238891
Author: Stevenson
Publisher: MCG
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Question
Chapter 7, Problem 1TS
a)
Summary Introduction
To determine: The trade-offs in using self-directed teams instead of a more conventional approach using occasional use of teams.
Introduction: The amount of the dependency on human effort by an organization in terms of achieving its goals is given by the work design. It is directly linked to the productivity of an organization where good work design helps in achieving high productivity.
b)
Summary Introduction
To determine: The time period for making updates at standard times due to minor changes in work methods.
c)
Summary Introduction
To determine: The choice of selection between work time study and work sampling for work measurement.
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What are the trade-offs in the following?A. Choosing between time study and work sampling for work measurement
For a time study of a health insurance claims-adjusting process, the analyst uses the continuous method of recording times. The job is divided into four work elements. Shown in Figure are the performance rating factors, RF, and the continuous method recorded times, r, for each work element.a. Calculate the normal time for this job. b. Calculate the standard time for this job, assuming that the allowance is 20 percent of the normal time. c. What is the appropriate sample size for estimating the time for element 2 within {10 percent of the true mean with 95 percent confidence?
(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) 246
Chapter 7 Solutions
Operations Management
Ch. 7.S - Prob. 1DRQCh. 7.S - Prob. 2DRQCh. 7.S - Prob. 3DRQCh. 7.S - Prob. 4DRQCh. 7.S - Prob. 5DRQCh. 7.S - Prob. 6DRQCh. 7.S - Prob. 7DRQCh. 7.S - Prob. 8DRQCh. 7.S - Prob. 9DRQCh. 7.S - Prob. 10DRQ
Ch. 7.S - Prob. 1PCh. 7.S - Prob. 2PCh. 7.S - Prob. 3PCh. 7.S - Prob. 4PCh. 7.S - Prob. 5PCh. 7.S - Prob. 6PCh. 7.S - Prob. 7PCh. 7.S - Prob. 8PCh. 7.S - Prob. 9PCh. 7.S - Prob. 10PCh. 7.S - Prob. 11PCh. 7.S - Prob. 12PCh. 7.S - Prob. 13PCh. 7.S - Prob. 14PCh. 7.S - Prob. 15PCh. 7.S - Prob. 16PCh. 7.S - Prob. 17PCh. 7.S - Prob. 18PCh. 7.S - Prob. 19PCh. 7.S - Prob. 1CQCh. 7.S - Prob. 2CQCh. 7.S - Prob. 3CQCh. 7 - Prob. 1DRQCh. 7 - What are some of the main advantage and...Ch. 7 - Prob. 3DRQCh. 7 - Prob. 4DRQCh. 7 - Prob. 5DRQCh. 7 - Prob. 6DRQCh. 7 - Prob. 7DRQCh. 7 - What are motion study principles? How are they...Ch. 7 - Prob. 9DRQCh. 7 - Prob. 10DRQCh. 7 - Prob. 11DRQCh. 7 - Prob. 12DRQCh. 7 - Prob. 13DRQCh. 7 - Prob. 14DRQCh. 7 - Prob. 15DRQCh. 7 - Prob. 16DRQCh. 7 - Prob. 17DRQCh. 7 - Prob. 18DRQCh. 7 - Prob. 19DRQCh. 7 - Prob. 1TSCh. 7 - Prob. 2TSCh. 7 - Prob. 3TSCh. 7 - Prob. 1CTECh. 7 - Prob. 2CTECh. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Given these observed times (in minutes) for four...Ch. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - An analyst made the following observations about...Ch. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19P
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Similar questions
- Time study mainly addresses:a) Timing all workers’ performances for setting standardtimesb) Improving the working environment for setting standardtimesc) Timing a sample of worker’s performance for settingstandard timesd) Timely review of the workloads for setting standardtimese) All of the abovearrow_forwardB\ Put in Order: Below are the steps used in conducting a Job Safety Analysis. Place them in the correct order by putting the number 1 in front of the first step, the number 2 in front of the second step, and so forth. And why. a) Recommending procedures to meet those needs b) Observing the task c) Breaking the task down into activities or steps. d) Analyzing each step for safety or operational needs.arrow_forwardWhat are the trade offs in choosing between time study and work sampling for work measurement.arrow_forward
- The least preferred method of establishing labor standards is:a) time studies.b) work sampling.c) historical experience.d) predetermined time standards.arrow_forwardWhat would typically happen if an abnormally short time was recorded when conducting a stopwatch time study? a) It would be included in the study. b) It would be discarded. c) It would be factored by the performance rating. d) Inform the supervisor of the abnormality.arrow_forwardThe sociotechnical approach to work design Select one: a. Is decreasing in popularity. b. Is generally associated with self-managed work groups c. Is more concerned with outputs and productivity than worker satisfaction d. Is unrelated to open systems concepts.arrow_forward
- The final process of job analysis is the preparation of job description and job specification. Select one: O True O Falsearrow_forwardA Task/Activity Cycle Time (days) A E 3 C D 3 E 1 F a- Calculate the Average Cycle Time b- Calculate the Processing Cycle Time c- Calculate the Cycle Time Efficiency 23 D Processing Time (hours) 1 3.7 4.5 3.5 22 2 Comments P = 70% P = 30%arrow_forwardSuppose you want to set a time standard for the baker making her specialty, square donuts. A work sampling study of her on "donut day" yielded the following results: Time spent (working and idle) : 320 minutes Number of donuts produced : 5,000 pieces Working time : 280 minutes Performance rating : 125% Allowances : 10% What is the standard time per donut given the allowance is added to its normal time?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_forwardThe main topic is “ Human Resource Strategy and Decision Strategy”. The sub-topics are:- Job Design Work Measurement Decision Theory The unit objectives are:- Assess the relationship between productivity and job design. Evaluate the techniques used to analyse workarrow_forward3. Job enrichment can come from: a. increasing task identity b. increasing workplace autonomy c. reducing task significance d. all of the above e. a and b onlyarrow_forward
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