OPERATIONS MANAGEMENT W/ MYLAB <C>
19th Edition
ISBN: 9781323900154
Author: HEIZER
Publisher: PEARSON C
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Chapter 10, Problem 14P
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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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.
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 percent (machine rating is 100 percent). Midway through the study, the worker took a 10-minute rest break. Assuming an allowance factor of 12 percent of work time, determine the standard time for this job.
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).
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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Similar questions
- 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?arrow_forwardRefer 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_forwardJell Lee Beans is famous for its boxed candies, whichare sold primarily to businesses. One operator had the followingobserved times for gift wrapping in minutes: 2.2, 2.6, 2.3, 2.5, 2.4.The operator has a performance rating of 105% and an allowancefactor of 10%. What is the standard time for gift wrapping?arrow_forward
- Under which perspective of the balanced scorecard would you classify on time delivery to customers?arrow_forwardA time study was performed on a particular machine, the results of which are as follows: Mean manual effort time per cycle: 6.53 minutes Mean cutting time (power feed): 4.36 minutes Mean performance rating: 115% Machine allowance (power feed): 10% Fatigue allowance: 15% Compute the standard time for the operation given the allowances are added to their normal times. Kindly detailed the solution, many thanks.arrow_forwardA Northeast Airlines gate agent, Chip Gilliken,gives out seat assignments to ticketed passengers. He takesan average of 50 seconds per passenger and is rated 110% inperformance. How long should a typical agent be expected totake to make seat assignments?arrow_forward
- A recently negotiated union contract allows workers in a shipping department 24 minutes for rest, 10 minutes for personal time, and 14 minutes for delays for each four hours worked. A time study analyst observed a job that is performed continuously and found an average time of 6.0 minutes percycle for a worker she rated at 95 percent. What standard time is applicable for that operation?arrow_forwardSuppose 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 =arrow_forwardIn time study, the rating factor is applied to determine: A) Standard time of a job B) Merit rating of the worker C) Normal time of a worker.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_forwardA time study of an employee assembling peanut valves resulted in the following set of observations. What is the standard time, given a performance rating of 97 percent and an allowance of 10 percent of the total normal time? LOADING... Average Time (seconds) Observations 10 15 11 10 15 19 Part 2 The standard time is enter your response here seconds. (Enter your response rounded to two decimal places.)arrow_forwardThe “worker” in this scenario had to perform a candy-sorting task and the rest of the class had to record the observed times (OT) for the task. It was decided that the rating for the “worker” was 100%. Given the following table, find the standard time for each element. Write your answers in order from Element #1 --> Element #5. Answers must have one decimal place: e.g. 3.0 or 12.5. Round up if necessary. Assume a total allowance of 5%. In your equation you will use for ST, consider allowance to be 0.05. Element Trail 1 Trial 2 Standard Time 1 Walk to podium 3 sec 3 sec 2 Fill mug 5 sec 6 sec 3 Walk to desk/sit 5 sec 4 sec 4 Sort Candy 12 sec 12 sec 5 Walk to desk 4 sec 4 secarrow_forward
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