EBK PRINCIPLES OF OPERATIONS MANAGEMENT
11th Edition
ISBN: 9780135175644
Author: Munson
Publisher: VST
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Chapter 10, Problem 18P
a)
Summary Introduction
To determine: Thenormal time for the process.
Introduction: Time study is the basis that helps set the standard time; it would time a sample of the performance of the worker.
b)
Summary Introduction
To determine: Thestandard time for the process.
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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Students have asked these similar questions
A hospital administrator thinks that the X-ray equipment is only in use about 20 percent of the time. What number of observations in a work sampling study would be needed to estimate the true percentage of time to within 5 percent with a confidence of 98 percent?
State and describe some of the limitations of time study method ?
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
83
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 20% faster pace than is typical for adequately trained workers?
c. What is standard time for this task if allowances sum to 14%?
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 air-conditioned)…
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. 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. 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
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- please answer within 30 minutes.arrow_forwardJell Lee Beans is famous for its boxed candies, which are sold primarily to businesses. One operator had the following observed times for gift wrapping in minutes: 2.3, 2.7, 2.4, 2.4, 2.3. The operator has a performance rating of 110% and an allowance factor of 10%. The standard time for this gift-wrapping operation = minutes (round your response to one decimal place).arrow_forwardDescribe some of the limitations of time study method ?arrow_forward
- help pleasearrow_forward5. 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 results of a time study to perform a quality control test are shown in the following table: *Disregard employee is smoking a cigarette (included in personal time). The allowance factor is given to be 25%. a) The normal time for the complete operation = b) The standard time for this process = Performance Observation (minutes per cycle) Element Rating 1 2 3 4 5 1 95% 1.5 1.8 23 2 110% 0.8 0.5 90% 0.5 0.4 4 85% 0.6 0.9 8549 1.8 1.9 1.4 0.6 3.7* 0.6 0.6 0.4 0.4 0.7 0.7 0.7 minutes (round your response to two decimal places). minutes (round your response to two decimal places).arrow_forward
- The snapback timing method was used to obtain the average times and performance ratings for work elements in a manual repetitive task. (See table below). All elements are worker-controlled and were performance rated at 80%. Element e is an irregular element performed every five cycles. A 15% allowance for personal time, fatigue, and delays isapplied to the cycle. Determine (a) the normal time and (b) the standard time for this cycle. If the worker’s performance during actual production is 120% on all manual elements for 7 actual hours worked on an 8-hour shift, (c) how many units will be producedarrow_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_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_forward
- Tim Nelson's job as an inspector for La-Z-Boy is to inspect 130 chairs per day.a) If he works an 8-hour day, how many minutes is be allowed for each inspection (i.e., what is his "standard time")?b) If he is a llowed a 6% fat igue a llowance, a 6% delay allowance,and 6% for personal time, what is the normal time that he is assumed to take to perform each inspection?arrow_forwardInformation for the Time-Cost Model Exercise Crash Normal Immediate Normal Time Crash Crash cost Task Time Cost Predecessors (weeks) Cost per week (weeks) NONE 3 $5,000 $13,000 $8,000 4 $10,000 $20,000 $5.000 A 17 $6,000 $6,000 D. 6 $4,000 $8,000 $2,000 B&C 9. $4,000 $9,000 $2,500 D&E 4 $5,000 $9,000 $4,000 G. F 3. $3,000 $6.000 $3,000 Your firm needs to find a new supplier for a key raw material. The table below lists the steps that need to be complete. Due to unforeseen issues, you need to expedite the project in order to continue to supply your customers with the finished product you are producing with this key raw material. What is the duration of the project after all crashing is complete? 25 23 24 O 22arrow_forwardHow to Work sampling compared with stopwatch time study?arrow_forward
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