Mylab Operations Management With Pearson Etext -- Access Card -- For Operations Management: Sustainability And Supply Chain Management (13th Edition)
13th Edition
ISBN: 9780135225899
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Question
Chapter 10, Problem 22P
Summary Introduction
To determine: The standard time for the operation
Introduction: Time study is the basis that helps set the standard time; it would time a sample of the performance of the worker.
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Define:
1.Severity Rate (SR)
2.Average Workdays Lost
Installing mufflers at the O'Sullivan Garage in Golden, Colorado, involves five work elements. Jill O'Sull ivanhas timed workers performing these tasks seven times, with the results shown in the following table: By agreement with her workers, Jill allows a 10% fatigue factor and a 10% personal-time factor, but no time for delay. To compute standard time for the work operatio n, Jill excludes all observations that a ppear to be unusual or nonrecurring. She does not want an error of mo re than ±5%.a) What is the standard time for the task?b) How many observations are needed to assu re a 95% confidence level?
State and describe some of the limitations of time study method ?
Chapter 10 Solutions
Mylab Operations Management With Pearson Etext -- Access Card -- For Operations Management: Sustainability And Supply Chain Management (13th Edition)
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. 2PCh. 10 - Draw an activity chart for a machine operator with...Ch. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 1PCh. 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. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 33PCh. 10 - Prob. 39PCh. 10 - Prob. 40PCh. 10 - Prob. 41PCh. 10 - Prob. 42PCh. 10 - Prob. 44PCh. 10 - Prob. 1CSCh. 10 - Prob. 2CSCh. 10 - Prob. 3CSCh. 10 - Prob. 4CSCh. 10 - Prob. 2.1VCCh. 10 - Prob. 2.2VCCh. 10 - Prob. 2.3VCCh. 10 - Prob. 2.4VCCh. 10 - Prob. 1.1VCCh. 10 - Prob. 1.2VCCh. 10 - Prob. 1.3VC
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Similar questions
- A traditional job description enumerates the relationship of each job to overall goals. Question 17 options: True Falsearrow_forwardWhat are the main uses of time study information?arrow_forwardProblem 1 Magic, Inc. carried out a time study of an existing job to develop new time standards. A worker was observed for 50 minutes. During that period, 42 units were produced. The analyst rated the worker as performing at an 85 percent performance rate. Allowances in the firm for rest and personal time are 10 percent. a. What is the normal time for the task? b. What is the standard time for the task?arrow_forward
- Describe some of the limitations of time study method ?arrow_forwardClaudine Soosay recorded the following times assemblinga watch. Determine (a) the average time, (b) the normaltime, a nd (c) the standard time taken by her, using a performancerating of95% and a personal allowance of 8%.arrow_forwardHow to Work sampling compared with stopwatch time study?arrow_forward
- After training, Mary Fernandez, a computer technician,had an average observed time for memory-chip tests of12 seconds. Mary's performance rating is I 00%. 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_forward4 - For a time study of a health insurance claims-adjusting process, the analyst recorded the times. The job is divided into four work elements, as shown in table. What is the appropriate sample size for estimating the time for element 2 within 7 percent of the true mean with 95 percent confidence? Work Element 1 3 4 5 Rating 1. Check from completion and Element 0.50 0.55 0.45 0.65 0.50 1.1 signatures Time 2. Enter claim amounts, check Element 0.70 1.80 0.70 0.95 0.75 1.2 math Time 3. Determine proportion of claim to be disallowed Element 1.45 1.30 1.25 1.65 1.40 1.2 Time 4. Generate form letter, enter data Element 2.75 2.50 2.25 1.75 2.70 0.9 for check Time a) 19 b) 16 c) 23 d) 21 e) 28arrow_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
- The owner of Kat Motel wants to develop a time standard for the task of cleaning a cat cage. In a preliminary study, she observed one of her workers perform this task six times, with the following results: Observation 1 2 3 4 5 6 Time (seconds) 52.7 70 53.3 90.3 80.6 86.7 If the employee performance rating is 1.50, what is the standard time for this task with an allowance of 20 percent of job time is used? seconds.arrow_forwardWork measurement as a source of job standards includes time study and work sampling, but not the use of historical data. Question 17 options: True Falsearrow_forwardBased on a careful work study in the Hofstetter Corp., the results shown in the following table have been observed: a) Compute the normal time for each work element.b) If the allowance for this type of work is 15%, what is the standard time?c) How many observations are needed for a 95% confidence level within ±5% accuracy? (Hint: Calculate the sample size of each element.)arrow_forward
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