Operations Management Questions and Solutions

SHANGHAI UNIVERSITY OF FINANCE AND ECONOMICS

School of International Business Administration

Operations Management

Spring 2011/2012

Assignment 2

Your Name: _______________ Your School: ___________________

Requirement:

1. Due date: Saturday, 12 May 2012.

2. You are encouraged to discuss the questions with your fellow classmates, but plagiarism is prohibited.

3. You can use either Chinese or English to finish this assignment, but please keep key words in English.

4. You should print out your completed assignment. Electronical copy will not be accepted.

Part 1: Please choose TRUE or FALSE for the statement.

1. (1 point) Using the Time-Cost CPM model, the crash time is the shortest possible time allowed for each activity in the project. (True/False)

Answer: True

2. (1 point) The critical path in a CPM analysis is found by locating the activities times with zero slack. (True/False)

Answer: True

3. (1 point) In a forecasting model using simple moving average the shorter the time span used for calculating the moving average, the closer the average follows trends. (True/False)

Answer: True

4. (1 point) The weighted moving average forecasting model uses a weighting scheme to modify the effects of individual data points. This is its major advantage over the simple moving average model. (True/False)

Answer: True

5. (1 point) Experience and trial and error are the simplest ways to choose weights for the weighted moving average forecasting model. (True/False)

Answer: True

6. (1 point) In the weighted moving average forecasting model the weights must add up to one times the number of data points. (True/False)

Answer: False

7. (1 point) The equation for exponential smoothing states that the new forecast is equal to the old forecast plus the error of the old forecast. (True/False)

Answer: False

8. (1 point) In exponential smoothing, it is desirable to use a higher smoothing constant when forecasting...