OPERATIONS MANAGEMENT LL PACKAGE
11th Edition
ISBN: 9781323592632
Author: KRAJEWSKI
Publisher: Pearson Custom Publishing
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Chapter 2, Problem 19P
A
Summary Introduction
Interpretation: The duration the worker is working based on the provided preliminary results should be determined.
Concept Introduction: In order to find out the productivity, improve standards and contribute allowances for increasing the productivity, work sampling method is followed.
B
Summary Introduction
Interpretation: Based on the result from part A, supposing the result is excessive, some supportive factors should be provided.
Concept Introduction: In order to find out the productivity, improve standards and contribute allowances for increasing the productivity, work sampling method is followed.
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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 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.
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.
What are the trade-offs in the following?A. Choosing between time study and work sampling for work measurement
Chapter 2 Solutions
OPERATIONS MANAGEMENT LL PACKAGE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- A 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_forwardExplain when is work sampling a more appropriate work measurement technique than time study ?arrow_forwardWhat role does data collection and analysis play in work measurement?arrow_forward
- What is the bottleneck of the process is which worker ?arrow_forwardAn initial time study was done on a process with the follow-ing results (in minutes). Based on the data obtained so far,assuming an allowance of 20 percent of the normal time,what do you estimate for the time per customer served, basedon this preliminary sample?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_forward
- Explain briefly how techniques described in Work Design and Measurement could be used to improve operations. Be specific about which techniques could be used, how they could be used, and why you think those techniques would be helpful.arrow_forwardWhat is job enrichment and what has led to its importance in job design?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
- In recent times, more employee tend to resign from their job, and management has attributed the problem to the challenges of ’work specialisation’ aspect in work design. Justify an appropriate measure that ought to be taken to resolve this problem.arrow_forwardErgonomics problem A work measurement analyst in the Electrical Company took 10 observations (for each element) of an operation job. The operation consists of four elements of work. Result of observation was shown in a Table attached. a. Determine the standard time and standard output if the total allowance time is 12% b. Check whether number of observation is sufficient or not for a 95 percent confidence level and 5 percent significant level.arrow_forwardA widget assembly process was timed for 75 cycles and had an average of 1.5 minutes per piece. The performance rating was 95%, and workday allowances are 10 percent. Determine the following: a) Observed time b) Normal time c) Standard time d) How might this information be used?arrow_forward
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