1- The exponential model would be attractive for analyzing a growing company\'s

ID: 3222362 • Letter: 1

Question

1- The exponential model would be attractive for analyzing a growing company's revenues over time.

True or False

2- Which of the following best describes the decomposition modeling approach to forecasting?

A- The values of certain variables are used to predict the values of others.

B- Series are separated into trend, seasonal, irregular, and cyclical components.

C- Forecasts are based on an average of recent values.

D- Sophisticated models such as regression with binaries are preferred.

3- Which of the following is the least useful time-series forecasting model when there is a strong upward trend in the data?

A- Estimated exponential trend model

B- A five-period centered moving average

C- Exponential smoothing with a high

D- Regression model with trend and seasonal binaries

4- The four components of a time series are which of the following?

A- Cycle, season, month, day

B- Month, cycle, seasonal, irregular

C- Cycle, seasonal, irregular, regular

D- Seasonal, cycle, irregular, trend

5- Using exponential smoothing, if Ft = 12, yt = 15, and = .10, what is the new forecast Ft+1?

A- 14.1

B- 12.6

C- 12.3

D- 13.7

2- Which of the following best describes the decomposition modeling approach to forecasting?

B- Series are separated into trend, seasonal, irregular, and cyclical components.

3. Which of the following is the least useful time-series forecasting model when there is a strong upward trend in the data?

B- A five-period centered moving average

4 .The four components of a time series are which of the following?

D- Seasonal, cycle, irregular, trend

5- Using exponential smoothing, if Ft = 12, yt = 15, and = .10, what is the new forecast Ft+1?

Ft+1 = alpha * yt + (1 - alpha) * Ft

= 0.1 * 15 + ( 1 -0.1) * 12

= 12.3

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