Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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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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State and describe some of the limitations of time study method ?
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?
A traditional job description enumerates the relationship of each job to overall goals.
Question 17 options:
True
False
Chapter 10 Solutions
Operations Management
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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- Problem 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_forwardAfter 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_forward
- After 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_forwardUse the data in the table below to answer questions 1 to 3. Observation 1 2 3 4 5 6 7 8 Time (seconds) 17 18 15 14 13 15 16 2 1. Using the data above, calculate the observed time for the task. 2. If the person observed worked at a pace that is 80% of normal, what should be the normal timefor this task? 3. If the person observed worked at a pace that is 80% of normal, and if the appropriate allowance for this task is 25% of job time, what should be the standard time?arrow_forwardDefine ergonomics. Discuss the role of ergonomics in job design.arrow_forward
- Peter Rourke, a loan processor a t Wentworth Bank,has been timed performing four work elements, with the resultsshown in the fo llowing table. The allowances for tasks such asth is are personal, 7%; fa tigue, 10%; and delay, 3%. a) What is the normal time?b) What is the standard time?arrow_forwardA. Case Study: Designing a Comprehensive Employee Orientation Program for XYZ Global Corporation Background:XYZ Global Corporation, a multinational conglomerate, is undergoing a significant expansion, with new hires joining from diverse cultural backgrounds and professional experiences. The Human Resources department has been tasked with designing a comprehensive employee orientation program to ensure a seamless onboarding experience for all employees. Question- Identify the key topics and information to be covered during the orientation.arrow_forwardDuring a time study in a machine shop, five observations of a milling operation performed by an operator whose rating factor is 95 percent yielded the following times (in minutes): 40, 48, 48, 46, and 42. The allowance for this type of operation is 15 percent. a. Determine the normal time for this operation. b. Determine the standard time for this operation.arrow_forward
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