operating and management h/w

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

Problem 2

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 0 4

2-4 4 13

1

2

5 8

9 6

3

12

11

10

LS

ES

LF

EF

4 7

2 7

8 4

10

6 4

5

6

3

2

5

9

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

Week Output (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 (Chapter 1)

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