Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Question
Chapter 7, Problem 17P
Summary Introduction
To design: A
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.
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Students have asked these similar questions
A library administrator wants to determine the proportion of time the circulation clerk is idle. The following information was gathered randomly by using work sampling:
Day
Number of TimesClerk Busy
Number of TimesClerk Idle
Total Number ofObservations
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
8
7
9
7
8
6
2
1
3
3
2
4
10
8
12
10
10
10
If the administrator wants a 95 percent confidence level and a degree of precision of +- 4 percent, how many more observations are needed?
Determine the standard time of the process using the below-recorded observations.
Hint: remove unusual time observations
It is not necessary to plan study time, just study
Select one:
True
O False
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. 3CTECh. 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
- An analyst made 30 observations over 15 minutes during which 12 units where produced. For 9 observations, the worker was seen working. Compute for the observed time.arrow_forwardCompare stopwatch time study and work sampling.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_forward
- Observations (mins) Day 1 2 3 4 5 6 1 21 30 22 25 31 30 2 23 29 17 32 28 31 3 22 28 33 26 32 31 4 33 30 22 35 29 30 5 35 27 36 28 31 27 6 27 32 30 35 32 32 7 35 32 28 35 35 27 8 26 30 31 37 39 31 9 36 36 34 39 31 25 10 26 42 35 35 27 37 The patient surveys indicate that they are willing to wait between 15 and 35 minutes before seeing Dr. Patel. Calculate the process capability index and capability ratio at the three-sigma level and interpret your results.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_forwardK Claudine Soosay recorded the following times assembling a watch: Observation No. 1234567co 8 Time (minutes) 0.12 0.10 0.11 0.11 0.15 0.10 0.10 0.10 Observation No. 9 10 11 12 13 14 15 16 Time (minutes) 0.11 0.08 0.11 0.10 0.10 0.11 0.14 0.08arrow_forward
- 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_forwardAn analyst has observed a job long enough to familiar with it and has Element cyclel cycle2 | cycle3 cycle4 | cycle5 PR become 1 1.51 1.63 1.48 1.55 1.72 100 2 2.46 2.34 2.33 2.36 2.30 90 divided it into four elements. 3 1.79 3.02 1.84 1.78 1.77 95 Element time for the first five 4 1.25 1.11 1.40 1.15 1.29 115 cycles with Perfomance Rating (PR) are shown in the table 3. Table 3 (a) Compute an estimatednomal time for the job based onthe data available at this stage of the study. (b) On the basis of the data available, what size sample should be take to estimate the time for all elements within 5 % of the true mean time with 95% confidence?arrow_forwardWhat situations call for the use of work sampling instead of time study?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_forwardAn analyst has been asked to prepare an estimate of the proportion of time that a turret lathe operator spends adjusting the machine, with 90% confidence level. Based on previous experience, the analyst believes the proportion will be approximately 30%. a. If the analyst uses sample size of 400 observations, what is the maximum error that will be associated with the estimate? b. What sample size would the analyst need in order to have the maximum error be no more than +/- 5%?arrow_forwardSupervisor Kenneth Peterson wants to determine the percent of time a machine in his area is idle. He decides to use work sampling, and his initial estimate is that the machine is idle 18% of the time. (Round all intermediate calculations to at least two decimal places before proceeding with further calculations.) Part 2 The number of observations that need to be taken by Peterson to be 98.00% confident that the results will be less than 6% from the true result = enter your response here (round your response to the immediate higher whole number).arrow_forward
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