EBK PRINCIPLES OF OPERATIONS MANAGEMENT
10th Edition
ISBN: 8220102744059
Author: HEIZER
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
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?
Installing mufflers at the Stanley Garage in Golden, Colorado, involves five work elements. Linda Stanley has timed workers performing these tasks seven times, with the results shown in the following table.
Job elements
OBSERVATIONS (MINUTES)
Performance rating (%)
1
2
3
4
5
6
7
1
Select correct mufflers
4
5
4
6
4
15
4
100
2
Remove muffler
6
8
7
6
7
6
7
90
3
Weld/install new muffler
15
14
14
12
15
16
13
105
4
Check/inspect work
3
4
24
5
4
3
18
100
5
Complete paperwork
5
6
8
-
7
6
7
130
By agreement with her workers, Stanley allows a 10% fatigue factor and a 10% personal-time factor. To compute standard time for the work operation, Stanley excludes all observations that appear to be unusual or nonrecurring. She does not want an error of more than 5%.
What is the standard time for the task?
How many observations are needed to assure a 95.45%…
Chapter 10 Solutions
EBK PRINCIPLES OF OPERATIONS MANAGEMENT
Ch. 10 - Prob. 1EDCh. 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. 9DQ
Ch. 10 - Prob. 10DQCh. 10 - Prob. 11DQCh. 10 - Prob. 12DQCh. 10 - Prob. 13DQCh. 10 - Prob. 14DQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 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 - Virginia College promotes a wide variety of...Ch. 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. 1.1VCCh. 10 - Prob. 1.2VCCh. 10 - Prob. 1.3VCCh. 10 - Prob. 2.1VCCh. 10 - Prob. 2.2VCCh. 10 - Prob. 2.3VCCh. 10 - Prob. 2.4VC
Knowledge Booster
Similar questions
- Latisha Simmons, a loan processor at Wentworth Bank, has been timed performing four work elements, with the results shown in the following table. Task Element 1 2 3 4 Performance Rating 110% 85% 90% 85% 1 0.6 0.6 0.5 1.4 Observation (minutes per cycle) 2 3 4 0.3 0.8 0.5 1.9 0.6 0.7 0.6 1.9 0.4 0.6 0.5 1.7 The allowances for tasks such as this are personal, 8%; fatigue, 12%; and delay, 3%. minutes (round your response to two a) The normal time for the complete operation : = decimal places). b) The standard time for this process = minutes (round your response to two decimal places). 0.5 0.8 0.5 1.4arrow_forwardDescribe some of the limitations of time study method ?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_forward
- TOYS 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_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_forwardK Latisha Simmons, a loan processor at Wentworth Bank, has been timed performing four work elements, with the results shown in the following table. Task Element 1 2 3 4 Performance Rating 115% 95% 85% 80% 1 0.5 0.6 0.7 1.6 Observation (minutes per cycle) 2 3 4 0.4 0.9 0.4 1.9 0.5 0.7 0.6 2.1 0.3 0.6 0.4 1.7 5 0.3 0.7 0.4 1.5 The allowances for tasks such as this are personal, 8%; fatigue, 10%; and delay, 2%. a) The normal time for the complete operation = minutes (round your response to two decimal places). b) The standard time for this process = minutes (round your response to two decimal places).arrow_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_forwardDescribe the job design to specify the work material and methods?arrow_forwardThe 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_forward
- A 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_forwardWhat is the significance of work measurements and time standards to a business? Are there any drawbacks to putting these standards in place?arrow_forwardPeter 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.