OPERATIONS MANAGEMENT W/ MYLAB <C>
19th Edition
ISBN: 9781323900154
Author: HEIZER
Publisher: PEARSON C
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Chapter 10, Problem 13P
Summary Introduction
To determine: To find the normal time for the operation
Introduction: Time study is the basis that helps to set the standard time; it would time a sample of the performance of the worker.
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If Charlene Brewster has times of 8.4, 8.6, 8.3, 8.5, 8.7,and 8.5 and a performance rating of 110%, what is the normaltime for this operation? Is she faster or slower than normal?
Suppose Charlene Brewster has times (in seconds) of
8.3,
8.5,
8.4,
8.4,
8.6,
8.6
and a performance rating of 110%.
a) For a given allowance factor of 15%, the standard time for the operation = ? seconds (round your response to two decimal places).
Suppose Charlene Brewster has times ( in seconds) of 8.5,8.7,8.3,8.5,8.7,8.5 and a performance rating of 110%.
the normal time for this operation =
Chapter 10 Solutions
OPERATIONS MANAGEMENT W/ MYLAB <C>
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 - Prob. 2PCh. 10 - Draw an activity chart for a machine operator with...Ch. 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. 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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- Refer to Problem (If Charlene Brewster has times of 8.4, 8.6, 8.3, 8.5, 8. 7, and 8.5 and a performance rating of I 10%, what is the normal time for this operation? Is she faster or slower than normal?).a) If t he allowance factor is 15%, what is the standard time for this operation?b) If the allowance factor is 18% and the performance rating is now 90%, what is the standard time for this operation?arrow_forwardIf Charlene, the worker in Problem( If Charlene Brewster has times of 8.4, 8.6, 8.3, 8.5, 8. 7,and 8.5 and a performance rating of I 10%, what is the normal time for this operation? Is she faster or slower than normal? ) has a performance rating of 90%, what is the normal time for the operation? Is she faster or slower than normal?arrow_forwardA hotel housekeeper, Alison Harvey, wasobserved five times on each of four task elements, as shownin the following table. On the basis of these observations, findthe standard time for the process. Assume a 10% allowancefactor.arrow_forward
- Use excel to show formulas 2.A job had an observed time of five minutes, a performance rating of .70, and an allowance factor of 20 percent of job time. Twenty cycles were timed. Standard time for the job in minutes is:arrow_forwardA hotel housekeeper, Alison Harvey, was observed five times on each of four task elements, as shown in the following table. On the basis of these observations, find the standa rd timefor the process. Assume a I 0% a llowance factor.arrow_forwardHow many work cycles should be timed to estimate the average cycle time to within 2 percent ofthe sample mean with a confidence of 99 percent if a pilot study yielded these times (minutes):5.2, 5.5, 5.8, 5.3, 5.5, and 5.1? The standard deviation is .253 minutes per cycle.arrow_forward
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- During 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_forwardHow can the time for a machine operator be classified,Turns between each job and often between work Go for stock, off the machine?arrow_forwardAfter being observed many times, Beverly Demarr, ahospital lab analyst, had an average observed time for blood testsof 12 minutes. Beverly’s performance rating is 105%. The hospitalhas a personal, fatigue, and delay allowance of 16%.a) Find the normal time for this process.b) Find the standard time for this blood test.arrow_forward
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