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 25P
Summary Introduction
To determine: The normal 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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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?
Define:
1.Severity Rate (SR)
2.Average Workdays Lost
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.
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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- 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?arrow_forward6- A time study on a manual work eycle was taken by observing times. There are three regular elements in the work eycle as follows: a, b, and d. Element e is an iregular element performed every 4 cycles. Observed times and performance ratings of the elements are also given in the figure. Determine a. the normal time b. the standard time for the work cycle, using an allowance factor of 25%. Select your choice according to part a and b's answer where both of them must be true. Work element Observed time Performance rating a b d 0,52min 0,25 min 1,20 min 0,26 min 80% 75% 92% 100% a) a:1.9675; b:1.9675 b) a:1.1395; b:1.1395 c) a: 1.1395; b:1.4814 d) a: 1.1395; b:1.4244 e) a: 1.9675; b:2.4594arrow_forwardDraw an activity chart (a crew chart similar toFigure 10.6) for a concert (for example, Tim McGraw, LinkinPark, Lil' Wayne, or Bruce Springsteen) and determine how toput together the concert so the star has reasonable breaks. Forinstance, at what point is there an instrumental number, a visualefTect, a duet, a dance moment, that allows the star to pause andrest physica lly or at least rest his or her voice? Do other membersof the show have moments of pause or rest?arrow_forward
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