operating & management.
Problem 1
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.
5
4 7
9 2
2 10
( 8 )4 5 7 8 2
1
LS LF
ES EF
3
12
10 6
11
3
( 5 )6 6 4 9
Summary:
Activity ES EF LF LS Slack
|
1-2 |
0 |
4 |
|
2-4 |
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 |
|||
|
Week |
Output (Units) |
Workers |
Materials (lbs) |
|
1 |
30000 |
6 |
450 |
|
2 |
33600 |
7 |
470 |
|
3 |
32200 |
7 |
460 |
|
4 |
35400 |
8 |
480 |