Problem 1
Data was collected on 40 jobs of Residential and Commercial customers for Apple Pie Computers. These jobs had a problem with the computer that they purchased: Noisy, Equipment Failure, Runs warm, or has a strange Odor.
Use the data collected in the chart below to generate a Pareto Chart and determine which complaint is the one that is generating most of the problems. You may use the spreadsheet provided by the American Society for Quality (ASQ) to solve this problem or you may choose to solve it without that tool.
|
Job
Number
|
Problem/ Customer Type
|
Job Number
|
Problem/ Customer Type
|
Job Number
|
Problem/Customer Type
|
| 301 |
|
F/R
|
315
|
F/C
|
329
|
O/C
|
| 302 |
|
O/R
|
316
|
O/C
|
330
|
N/R
|
| 303 |
|
N/C
|
317
|
W/C
|
331
|
N/R
|
| 304 |
|
N/R
|
318
|
N/R
|
332
|
W/R
|
| 305 |
|
W/C
|
319
|
O/C
|
333
|
O/R
|
| 306 |
|
N/R
|
320
|
F/R
|
334
|
O/C
|
| 307 |
|
F/R
|
321
|
F/R
|
335
|
N/R
|
| 308 |
|
N/C
|
322
|
O/R
|
336
|
W/R
|
| 309 |
|
W/R
|
323
|
F/R
|
337
|
O/C
|
| 310 |
|
N/R
|
324
|
N/C
|
338
|
O/R
|
| 311 |
|
N/R
|
325
|
F/R
|
339
|
F/R
|
| 312 |
|
F/C
|
326
|
O/R
|
340
|
N/R
|
| 313 |
|
N/R
|
327
|
W/C
|
341
|
O/C
|
| 314 |
|
W/C
|
328
|
O/C
|
|
|
Key:
Problem Type Customer Type:
|
N =
|
Noisy
|
C =
|
Commercial customer
|
| F = |
|
Equip. Failure
|
R =
|
Residential customer
|
| W = |
|
Runs warm
|
|
|
| O = |
|
Odor
|
|
|
Determine the following quantities for each activity: the earliest start time, latest start time, earliest finish time, latest finish time, and slack time. List the critical activities and determine the expected duration of the project.
|
Summary:
Activity
|
ES
|
EF
|
LF
|
LS
|
Slack
|
|
1-2
2-4
|
0
|
4
|
|
| 4 |
|
13
|
|
Problem 3
Calculate the Multi-Factor productivity for each week using the data shown below for production of nutrition bars. What do the productivity figures suggest? Assume a 40-hour weeks and an hourly wage of $12. Overhead is 1.5 times weekly labor costs. Material cost is $6 per pound. Standard price is $140 per unit.
PROBLEM 2 - 3
Output
Week (Units) Workers Materials (lbs)
|
1
|
30000
|
6
|
450
|
| 2 |
|
33600
|
7
|
470
|
| 3 |
|
32200
|
7
|
460
|
| 4 |
|
35400
|
8
|
480
|
Problem 4
Chris received new word processing software for her birthday. She also received a check, with which she intends to purchase a new computer. Chris' college instructor assigned a paper due next week. Chris decided that she will prepare the paper on the new computer. She made a list of the activities she will need to do and their estimated times.
a. Arrange the activities into one logical sequence.
b. Construct an AOA diagram.
c. Construct an AON diagram.
d. Determine the critical path and the expected duration of the project.
Estimated
Time (hrs.) Activity (Abbreviation)
|
0.8
|
Install software (Ins)
|
| 0.4 |
|
Outline the paper (Out)
|
| 0.2 |
|
Submit paper to Instructor (Sub)
|
| 0.6 |
|
Choose a topic (Ch)
|
| 0.5 |
|
Use grammar-checking routine and make corrections (Ck)
|
| 3.0 |
|
Write the paper using the word-processing software (Write)
|
| 2.0 |
|
Shop for new computer (Sh)
|
| 1.0 |
|
Select and purchase computer (Sell)
|
| 2.0 |
|
Library research on chosen topic (Lib)
|
Problem 5
Briefly discuss the following terms related to the historical evolution of Operations Management:
a. Describe the operations function and the nature of the operations manager's job
b. Briefly discuss each of these terms related to the historical evolution of Operations Management (OM): a) Industrial Revolution, b) Scientific Management, c) Interchangeable Parts, d) Division of Labor
c. Explain the term Value Added
d. Discuss the various impacts of Outsourcing