MyOMLab Principles of operations management : Sustainability and supply chain management (Book & eText Access Card)
10th Edition
ISBN: 9780134184111
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Question
Chapter 10, Problem 25P
a)
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.
b)
Summary Introduction
To determine: The standard 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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A 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.
Based on a careful work study in the Hofstetter Corp., the results shown in the following table have been observed: a) Compute the normal time for each work element.b) If the allowance for this type of work is 15%, what is the standard time?c) How many observations are needed for a 95% confidence level within ±5% accuracy? (Hint: Calculate the sample size of each element.)
Name the information contained in the work plan ?
Chapter 10 Solutions
MyOMLab Principles of operations management : Sustainability and supply chain management (Book & eText Access Card)
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. 38PCh. 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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Similar questions
- State and describe some of the limitations of time study method ?arrow_forwardPeter Rourke, a loan processor a t Wentworth Bank,has been timed performing four work elements, with the resultsshown in the fo llowing table. The allowances for tasks such asth is are personal, 7%; fa tigue, 10%; and delay, 3%. a) What is the normal time?b) What is the standard time?arrow_forwardTwo strategies for lowering rework costs should be listed. How important do you think gradual delivery is across both strategies?arrow_forward
- How many observations should a time study analyst plan for in an operation that has a standard deviation of .4 minutes per piece if the goal is to estimate the mean time per piece to within .1 minute with a confidence of 95.5 percent?arrow_forwardWhat is the significance of work measurements and time standards to a business? Are there any drawbacks to putting these standards in place?arrow_forwardUse the data in the table below to answer questions 1 to 3. Observation 1 2 3 4 5 6 7 8 Time (seconds) 17 18 15 14 13 15 16 2 1. Using the data above, calculate the observed time for the task. 2. If the person observed worked at a pace that is 80% of normal, what should be the normal timefor this task? 3. If the person observed worked at a pace that is 80% of normal, and if the appropriate allowance for this task is 25% of job time, what should be the standard time?arrow_forward
- Nine observations from a work measurement study using continuous timing are shown below. Allowances are determined as: personal, five percent; fatigue, eight percent; delay, five percent. Use the Work Measurement Excel template to determine the standard time for this operation. Work Observation Element 1 2 3 4 5 6 7 8 9 Performance Rating A 0.09 0.14 0.08 0.07 0.10 0.09 0.15 0.14 0.15 110% B 0.23 0.20 0.22 0.20 0.24 0.23 0.29 0.27 0.27 90% C 0.49 0.51 0.49 0.46 0.49 0.49 0.51 0.49 0.48 95% D 0.64 0.66 0.63 0.62 0.69 0.67 0.67 0.66 0.70 115% E 0.72 0.74 0.74 0.69 0.81 0.82 0.79 0.80 0.82 105% F 1.01 1.03 0.99 0.99 1.09 1.12 1.03 1.07 1.12 85% Round your answer to two decimal places. minutesarrow_forwardBased on the Gantt chart, which task has the longest duration? Task Duration Predecessor A 3 days - B 5 days A C 4 days B D 2 days B E 1 day C, D F 1 day E a. It cannot be determined from the Gantt chart. b. Task C c. Task D d. Task B e. Task Aarrow_forwardList and explain the types of jobs today that would require time and motion studies to be a factor? Would any additional skills be required to be taught? Provide examples.arrow_forward
- Nine observations from a work measurement study using continuous timing are shown below. Allowances are determined as: personal, five percent; fatigue, six percent; delay, five percent. Use the Work Measurement Excel template to determine the standard time for this operation. Work Observation Element 1 2 3 4 5 6 7 8 9 Performance Rating A 0.10 0.15 0.08 0.06 0.11 0.10 0.16 0.15 0.16 115% B 0.23 0.18 0.23 0.22 0.25 0.24 0.29 0.28 0.28 95% C 0.49 0.52 0.49 0.48 0.47 0.47 0.52 0.49 0.51 105% D 0.62 0.67 0.64 0.59 0.70 0.68 0.68 0.67 0.70 90% E 0.71 0.74 0.73 0.70 0.81 0.81 0.78 0.81 0.83 105% F 1.03 1.03 1.01 1.01 1.08 1.12 1.03 1.09 1.11 100% Round your answer to two decimal places. minutesarrow_forwardDraw an activity chart for cha nging the right rear tireon an automobile with:a) Only one person workingb) Two people workingarrow_forwardUsing the following table, calculate the slack for Task H Task Predecessor Duration (days) A - 77 B A 68 C - 45 D - 41 E B 23 F B,C 57 G E,F 47 H F 30arrow_forward
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