Math 540 Quiz B
Question 1
2 out of 2 points
If average forecast error is positive, it indicates that the forecast is biased high.
Answer
Selected Answer: False
Correct Answer: False
Question 2
2 out of 2 points
A seasonal effect is one that repeats at fixed intervals of time, typically a year, month, week, or day.
Answer
Selected Answer: True
Correct Answer: True
Question 3
2 out of 2 points
The Delphi method develops a consensus forecast about what will occur in the future.
Answer
Selected Answer: True
Correct Answer: True
Question 4
2 out of 2 points
In regression models based on time-series data, the dependent variable is time or some function of time and the focus is on predicting the future.
Answer
Selected Answer: False
Correct Answer: False
Question 5
2 out of 2 points
Regression methods attempt to develop a mathematical relationship between the item being forecast and factors that cause it to behave the way it does.
Answer
Selected Answer: True
Correct Answer: True
Question 6
2 out of 2 points
Coefficient of determination is the percentage of the variation in the ________ variable that results from the ________ variable.
Answer
Selected Answer: dependent, independent
Correct Answer: dependent, independent
Question 7
0 out of 2 points
Time-series models ________.
Answer
Selected Answer: include independent variables like, demand conditions and the current economy state that help in forecasting
Correct Answer: assume that whatever forces have influenced sales in the recent past will continue into the near future
Question 8
2 out of 2 points
Which of the following possible values of alpha would cause exponential smoothing to respond the most slowly to sudden changes in forecast errors?
Answer
2 out of 2 points
If average forecast error is positive, it indicates that the forecast is biased high.
Answer
Selected Answer: False
Correct Answer: False
Question 2
2 out of 2 points
A seasonal effect is one that repeats at fixed intervals of time, typically a year, month, week, or day.
Answer
Selected Answer: True
Correct Answer: True
Question 3
2 out of 2 points
The Delphi method develops a consensus forecast about what will occur in the future.
Answer
Selected Answer: True
Correct Answer: True
Question 4
2 out of 2 points
In regression models based on time-series data, the dependent variable is time or some function of time and the focus is on predicting the future.
Answer
Selected Answer: False
Correct Answer: False
Question 5
2 out of 2 points
Regression methods attempt to develop a mathematical relationship between the item being forecast and factors that cause it to behave the way it does.
Answer
Selected Answer: True
Correct Answer: True
Question 6
2 out of 2 points
Coefficient of determination is the percentage of the variation in the ________ variable that results from the ________ variable.
Answer
Selected Answer: dependent, independent
Correct Answer: dependent, independent
Question 7
0 out of 2 points
Time-series models ________.
Answer
Selected Answer: include independent variables like, demand conditions and the current economy state that help in forecasting
Correct Answer: assume that whatever forces have influenced sales in the recent past will continue into the near future
Question 8
2 out of 2 points
Which of the following possible values of alpha would cause exponential smoothing to respond the most slowly to sudden changes in forecast errors?
Answer