Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 1.10, Problem 34P
Summary Introduction
To determine: The time required to produce 100,000th, assuming the learning curve remains accurate on considering the learning curve derived in problem 30.
Introduction:
Learning curve strategy refers to the graphical representation of the relationship between cost and output over a fixed period.The learning curve is based on the idea that the process gets better overtime or as the task repeated.
Learning rate is part of the learning curve. In the learning rate technique, learning grows withspecified percentage every time when the time is doubled.
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Suppose a manufacturer of copiers has concluded that a 70 percent learning curve applies to the time a beginning service technician takes to install copy machines. Use the Learning Curve Excel template to answer the following questions:
If the time required to install the first copy machine is estimated to be five hours, what is an estimate of the time required by a new technician to install the second and third copiers? Round your answers to one decimal place.
For x = 2 it takes hours
For x = 3 it takes hours
If the learning rate changes to 65 or 95 percent, what is an estimate of the time required by a new technician to install the second and third copiers? Round your answers to one decimal place.
For x = 2 and a 65% LC, it takes hours
For x = 3 and a 65% LC, it takes hours
For x = 2 and a 95% LC, it takes hours
For x = 3 and a 95% LC, it takes hours
Find the average time per unit required to produce the first 29 units, if the slope parameter of the learning rate is 88% and the first unit takes 445 hours.
An aircraft company has an order to refurbish the interiors of 18 jet
aircraft. The work has a learning curve percentage of 80. On the basis of
experience with similar jobs, the industrial engineering department estimates
that the first plan will require 300 hours to refurbish. Estimate the amount of
time needed to complete:
The 5th plane,
The first 5 planes,
All 18 planes.
For a, use logarithmic approach formula, for b and c, use learningcurve approach formula.
Chapter 1 Solutions
Production and Operations Analysis, Seventh Edition
Ch. 1.3 - Prob. 1PCh. 1.3 - Prob. 2PCh. 1.3 - Prob. 3PCh. 1.3 - Prob. 4PCh. 1.3 - Prob. 5PCh. 1.3 - Prob. 6PCh. 1.3 - Prob. 7PCh. 1.3 - Prob. 8PCh. 1.3 - Prob. 9PCh. 1.3 - Prob. 10P
Ch. 1.3 - Prob. 11PCh. 1.3 - Prob. 12PCh. 1.7 - Prob. 13PCh. 1.7 - Prob. 14PCh. 1.7 - Prob. 15PCh. 1.7 - Prob. 16PCh. 1.7 - Prob. 17PCh. 1.7 - Prob. 18PCh. 1.7 - Prob. 19PCh. 1.7 - Prob. 20PCh. 1.7 - Prob. 21PCh. 1.8 - Prob. 22PCh. 1.8 - Prob. 23PCh. 1.8 - Prob. 24PCh. 1.9 - Prob. 25PCh. 1.9 - Prob. 26PCh. 1.9 - Prob. 27PCh. 1.9 - Prob. 28PCh. 1.10 - Prob. 29PCh. 1.10 - Prob. 30PCh. 1.10 - Prob. 31PCh. 1.10 - Prob. 32PCh. 1.10 - Prob. 33PCh. 1.10 - Prob. 34PCh. 1.10 - Prob. 35PCh. 1.10 - Prob. 36PCh. 1.10 - Prob. 37PCh. 1.11 - Prob. 38PCh. 1.11 - Prob. 39PCh. 1.11 - Prob. 40PCh. 1.11 - Prob. 41PCh. 1.11 - Prob. 42PCh. 1 - Prob. 43APCh. 1 - Prob. 44APCh. 1 - Prob. 45APCh. 1 - Prob. 46APCh. 1 - Prob. 47APCh. 1 - Prob. 48APCh. 1 - Prob. 49APCh. 1 - Prob. 50AP
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- McDonald's, the fast-food restaurant, is known for high employee turnover, high quality, and low costs. Using your knowledge of the learning phenomenon, how does McDonald's get high quality and low costs when it has so much employee turnover?arrow_forwardA large grocery corporation has developed the following schedule for converting frozen food display cases to use CFC-free refrigerants: Week Unit 1 20 2 65 3 100 4 140 5 120 Historically, the learning rate has been 90% on such projects. The budget allows for a maximum of 40 direct labor employees per week and a total of 8,000 direct labor hours for the entire schedule. Assuming 40 work hours per week. If the first unit took 30 hours to convert, is this schedule feasible? If not, how can it be altered? Will additional cost involved in altering it?arrow_forwardThe product S takes 67 hours for production of 1 unit, where learning curve rate is 67% and what will be the total time taken by 4th unit of product S using incremental unit time method ?arrow_forward
- Although the learning curve never completely levels off to a horizontal line, if work standards are to be developed, there must be a point at which, for all practical purposes, learning is said to be have stoppped. If we have an 80 percent learning curve and say that the learning effect will be masked by other variables when the improvement in successive units is less than 0.5 percent, at about what unit number can the standard be set?arrow_forwardWhat is an example of the learning curve for a business operation where the average costs were reduced due to cumulative production experience?arrow_forwardIn Tronys Inc the first unit takes around 57 hours for the production whereas the learning curve rate is 71%, calculate the time taken by 32nd unit with using crawford model ?arrow_forward
- The most important factor(s) effecting the learning curve rate include(s): Select one: A. Complexity of the task B. Percentage of mechanical input C. Percentage of human input D. Only A and C Yield management, also known as revenue management is the amount of output of acceptable quality emerging from a production system compared with the amount that entered it. Select one: True False Obtaining lower unit costs through the use of larger facilities is called economies of scope. Select one: True False It is not unusual for fire departments to use “slack months” for building inspections, conducting prevention programs and giving talks as a way to have anticyclic outputs. Select one: True False In addition to showing time schedules, Gantt charts can also be used for capacities of facilities, workers, jobs,activities, and so forth. Select one: True Falsearrow_forwardIf Professor Laurie Macdonald takes 18 minutes to grade the first exam and follows an 75% learning curve then, the amount of time she requires to grade the 25th exam. The unit time is .263arrow_forwardYou need to develop a labor time estimate for a customer order of 50 network installations. It is estimated that the first installation will require 75 labor hours and a learning curve of 85 percent is expected. a. How many labor hours are required for the 25th installation?b. How many labor hours are required to complete all 50 installations? c. If the average labor cost is $28 per hour, what is the total labor cost for installing all the networks?d. How many workers are needed to complete the job in a week? Assuming each worker works 8 hours per day 5 days per week. Show breakdown of workarrow_forward
- NUBD Company is planning to introduce a new product with an 85 percent learning rate for production for batches of 1,000 units. The variable labor costs are P30 per unit for the first 1,000-unit batch. Each batch requires 100 hours. There are P10,000 in fixed costs not subject to learning. What is the cumulative total time (labor hours) to produce 2,000 units based on the cumulative average-time learning curve?arrow_forwardThe fifth unit of a 10-unit job took five hours to complete. The sixth unit has been worked on fortwo hours, but is not yet finished. Estimate the additional amount of time needed to finish the10-unit job if the work has a 75 percent learning ratearrow_forwardAssuming an 80 percent learning rate, if the 4th unit takes 100 hours to produce, the 16th unit should take how long to produce?arrow_forward
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