MGT-455 Topic 6 Chapter 10 and E Problem Set Assignment
Chapter 10 and E Problem Set
Complete problems 10.25, 10.29, E.3, E.5, E.6, E.14 in the textbook.
Submit one Excel file. Put each problem result on a separate sheet in your file. Ensure that your last name is in your filename.
You are not required to submit this assignment to LopesWrite.
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Problem 10.25
Peter Rourke, a loan processor at Wentworht Bank, has been timed performing four work elements, with the results shown in the follwing table. The allowances for tasks such as this are personal, 7% fatigue and 10%; and delay, 3%.
| Task Element | Performance Rating | Observations Minutes | ||||
| 1 | 2 | 3 | 4 | 5 | ||
| 1 | 110% | 0.5 | 0.4 | 0.6 | 0.4 | 0.4 |
| 2 | 95% | 0.6 | 0.8 | 0.7 | 0.6 | 0.7 |
| 3 | 90% | 0.6 | 0.4 | 0.7 | 0.5 | 0.5 |
| 4 | 85% | 1.5 | 1.8 | 2 | 1.7 | 1.5 |
A) What is the normal Time?
B) What is the standard time?
Problem 10.29
The Dubuqe Cement Company packs 80 pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, The company’s policy is a 23% allowance for workers.
A) compute the standard time for the bag-pakcing task
B) How many observations are necessary for 99% confidence, within + or – 5% accuracy?
| Element | 1 | 2 | 3 | 4 | 5 | Performance rating |
| Grasp and place bag | 8 | 9 | 8 | 11 | 7 | 110% |
| fill bag | 36 | 41 | 39 | 35 | 112a | 85% |
| seal bag | 15 | 17 | 13 | 20 | 18 | 105% |
| place bag on conveyor | 8 | 6 | 9 | 30b | 35b | 90% |
a = bags break open; delay in allowance factor
b = conveyor jams’ delay in allowance factor
Problem E.3
If Professor Laurie Macdonald takes 15 minutes to grade the first exam and follows an 80% learning curve, how long will it take her:
A) To Grade the 25th exam?
B) To grade the first ten exams?
Problem E.5
Beth Zion Hospital has received initial certification from the state of California to become a center for liver transplants. The hospital, however, must complete its first 18 transplants under great scrutiny and at no cost ot the patients. The very first transplant, just completed, required 30 hours. On the basis of research at the hospital, Beth Zion estimates that it will have an 80% learning curve. Estimate the time it will take to complete:
A) The 5th liver transplant
B) All of the first 5 transplant
C) The 18th transplant
D) All 18 Transplants
Problem E.6
Refer to Problem E.5. Beth Zion Hospital has just been informed that only the first 10 transplants must be performed at the hospital’s expense. The cost per hour of surgery is estimated to be $5000. Again learning rate is 80% and the first surgery took 30 hours.
A) How long will the 10th surgery take?
B) How much will the 10th surgery cost?
C) How much will all 10 cost the hospital?
Problem E.14
Suad Alwan, the purchasing agent for Dubai Airlines, is interested in determining what he can expect to pay for airplane number 4 if the third place took 20,000 hours to produce. What would Alwan expect to pay for plane number 5? Number 6? Use an 85% learning curve and a $40-per-hour labor charge.
Course: MGT-455 Production/Operations Management
School: Grand Canyon University
- 01/05/2020
- 110
