Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Question
Chapter E, Problem 3P
a)
Summary Introduction
To determine: The time taken to grade the 25th exam.
Introduction:
Learning curve:
Learning curve is based on the premise that when a person is repeating a task or job again and again, the performance of the person on that job or task will improve. It will depict relationship between cost and output over a definitive period of time.
b)
Summary Introduction
To determine: The time taken to grade the first 10 exams.
Introduction:
Learning curve:
Learning curve is based on the premise that when a person is repeating a task or job again and again, the performance of the person on that job or task will improve. It will depict relationship between cost and output over a definitive period of time.
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Students have asked these similar questions
If 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 .263
You are setting up a new production line for a new type of delivery drones. You observed that the cost for the 10th unit was $6296.33 and the cost for the 80th unit was $4146.15.
a) What is the K for the learning curve model of this production line?
b) What is the s for the learning curve model of this production line?
c) At which unit does its production cost start to be less than $1500?
8. A furniture company just completed a work analysis on the total completion time for dying
process of handmade dining tables. They have concluded that on average the process takes 27
minutes. However they want to incorporate the performance of the workers and allowance time
on this observed value. They think the people they observed was somehow slow, hence they want
to use a performance rate of 0.93 and they also want to allow 10% (allow=0.1) of job time. Based
on these parameters please calculate the normal and standard time estimates for this process.
Chapter E Solutions
Operations Management
Ch. E - Prob. 1DQCh. E - Prob. 2DQCh. E - Prob. 3DQCh. E - Prob. 4DQCh. E - Prob. 5DQCh. E - Prob. 6DQCh. E - Prob. 7DQCh. E - Prob. 8DQCh. E - Prob. 1PCh. E - Prob. 2P
Ch. E - Prob. 3PCh. E - Prob. 4PCh. E - Prob. 5PCh. E - Prob. 6PCh. E - Prob. 7PCh. E - Prob. 8PCh. E - Prob. 9PCh. E - Prob. 10PCh. E - Prob. 11PCh. E - Prob. 12PCh. E - Prob. 13PCh. E - Suad Alwan, the purchasing agent for Dubai...Ch. E - Prob. 15PCh. E - Prob. 16PCh. E - Regional Power owns 25 small power generating...Ch. E - Prob. 18PCh. E - Prob. 19PCh. E - Prob. 20PCh. E - Prob. 21PCh. E - Prob. 22PCh. E - Prob. 23PCh. E - Prob. 24PCh. E - Using the accompanying log-log graph, answer the...Ch. E - Prob. 26PCh. E - Prob. 1CSCh. E - Prob. 2CSCh. E - Prob. 3CS
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- The service times for a new data entry clerk have been measured and sequentially recorded as shown below. Report Time (minutes) Report Time (minutes) 1 66 45 2 56 7 44 3 53 8 41 4 48 5 47 The doubling rate based on the given information are: (Round all numerical responses in table below to one decimal place.) Doubling Period 1 to 2 Learning Rate (%) 2 to 4 3 to 6 4 to 8 a) The approximate learning curve rate = % (round your response to the nearest whole number). b) Using an 85% learning curve rate and the above times, the time to complete report number 48 = minutes (round your response to two decimal places).arrow_forwardplease solve in 30 mins.arrow_forwardA customer service department has the following resolution response time data: Average Response Time First contact 0.25 hr. Service scheduling 0.50 hr. Wait for service 24.00 hrs. Service 1.50 hrs. Total resolution time 26.25 hrs. What is the value-added ratio (rounded to one decimal place) in this process? a. 8.6% b. 91.4% c. 5.7% d. 28.6%arrow_forward
- At Maggard Micro Manufacturing, Inc., workers press semicon-ductors into predrilled slots on printed circuit boards. The elemen-tal motions for normal time used by the company are as follows: Reach 6 inches for semiconductors 40 TMUGrasp the semiconductor 10 TMUMove semiconductor to printed circuit board 30 TMUPosition semiconductor 35 TMUPress semiconductor into slots 65 TMUMove board aside 20 TMU (Each time measurement unit is equal to .0006 min.)Determine the normal time for this operation in minutes andin seconds.arrow_forwardIt is not necessary to plan study time, just study Select one: True O Falsearrow_forwardK Girish Shambu and Delores Reisel are teammates at a discount store; their new job is assembling bicycles for customers. Assembly of a bike has a learning rate of 80%. They forgot to time their effort on the first bike, but st 5 hours on the second. They have 6 more bikes to do. Determine approximately how much time will be (was) required for: a) The 1st unit = 6.25 hours (round your response to two decimal places). b) The 8th unit = 3.20 hours (round your response to two decimal places). c) The total amount of hours to build the 8 units = hours (round your response to two decimal places).arrow_forward
- 9. Manufacturer Ċ went through serious process changes in order to eliminate unnecessary processes from the work flow. However they have to bare the slow down in the process for a while due to this transition. They want to estimate when they can reach to the expected performance level based on a 'learning curve' study. For a certain task they have measured a completion time of 137 minutes in the first time an average employee finished the renewed task. Please provide the values in the below table for three different learning rates and two different repetition units. 2nd 4th 13th 27th Learning Rate 70% 80% 60%arrow_forwardExercise(1):Given =85% _1=120hrs Labor cost =17$ per hour If the company policy is to charge the customer 3 times the Labor cost 1-Find average price per unit for the first 10 units Using Learning Curve Table 2-Find average price per Unit for two cases :(a)the first 10 units if LR=70% and (b)the first 5 units if LR=90%arrow_forwardCycle-Time Analysis Variability is often considered to be the enemy of efficient and effective management. One approach to managing cycle times to improve delivery dependability is to map out the associated activities in a value-added process using a process flow diagram (see diagram in problem þelow). This allows the manager to identify and measure the specific activities so that the management process can be made more effective. The following problem illustrates the use of cycle time analysis. Problem Company X has recently completed an analysis of its primary value-added process. As part of this analysis, the major flows have been mapped such that the process has been broken down into 10 major activities. To better understand the process, the times to complete,each of these activities have been carefully monitored over the past month. The results of this monitoring follow. (3:3) (1:0.4) (10:6) (5:2.8) Activity 4 Standard Mean Deviation Activity 5 Activity 6 Activity 7 Activity 8 2.4…arrow_forward
- Suad Alwan, the purchasing agent for Dubai Airlines, has determined that the second plane took 18,000 hours to produce. Using an 85% learning curve and a $35-per-hour labor charge, he wants to determine the cost of the six additional planes. Part 2 Time required for the sixth unit = 13900 hours (round your response to the nearest whole number). Part 3 Cost of the sixth unit = 486500 dollars (round your response to the nearest whole number). Part 4 Time required for the seventh unit = enter your response here hours (round your response to the nearest whole number). Part 5. Cost of the seventh unit?arrow_forwardA contractor is preparing a bid to install swimming pools at a new housing addition. The estimated time to build the first pool is 35 hours. The contractor estimates an 85 percent learning rate. Without using the computer: a. How long do you estimate the time required to install the second pool? b. How long do you estimate the time required to install the fourth pool?arrow_forwardA call centre that handles customer service telephone calls is monitored by information system that collects data on the number of calls each representative received and the length of time each representative took to answer each call and then to respond to the question or request for service. Managers at the call centre can easily obtain statistics on virtually any part of the process. And data collection is built into the system, making it unintrusive. Obviously, the manager‟s goal is to make sure all calls are answered quickly and that customers are satisfied. Information from the system can then be used in a variety of ways. For instance, a manager can use the information from the system to compare a worker‟s output to that of his colleagues, to his own earlier output, to historical outputs reflecting similar work conditions at other times. He can evaluate the number and duration of calls service representatives answer on a given day. 3. What uses of the…arrow_forward
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