SOM 306 – Operations Management
A. Dechter
Chapter 2 Solutions
Problem 1:
Productivity of worker 1 = 1000 labels/30 minutes = 33.33 labels per minute
Productivity of worker 2 = 850 labels/20 minutes = 42.5 labels per minute
Worker 2 is more productive than worker 1
Problem 5:
Productivity using old method = 3 walls/45 minutes = 0.067 walls per minute
Productivity using new method = 2 walls/20 minutes = 0.1 walls per minute
The painter is more productive using the new method
Problem 6:
Productivity using old process = (50 pieces/day)/(8 hours/day) = 6.25 pieces/hr
Productivity using new process = (89 pieces/day)/(8 hours/day) = 11.13 pieces/hr
Change in productivity = (11.13 – 6.25)/(6.25) x 100% = 78.08%
Problem 8:
a. Multifactor productivity = $60/($15 + $20 + $20) = $60/$55 = 1.09
Findings indicate that the average cost to each patient is about 9% higher than the total
overall costs per patient that include labor costs, materials costs, and overhead costs.
b. Labor productivity = $60/3 hours = $20/hour