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You have a monthly time series of toy sales, with an upward trend and obvious spikes in the last two months of each year. Which of the following will likely provide good forecasts? O a. Holt's exponential smoothing method, provided that optimal smoothing constants are used. O b. Regression with time itself and dummy variables for 11 of the 12 months. O c. The moving averages method, provided that the span is at least 12. O d. None of these choices are likely to provide accurate forecasts.

You have a monthly time series of toy sales, with an upward trend and obvious spikes in the last two months of each year. Which of the following will likely provide good forecasts? O a. Holt's exponential smoothing method, provided that optimal smoothing constants are used. O b. Regression with time itself and dummy variables for 11 of the 12 months. O c. The moving averages method, provided that the span is at least 12. O d. None of these choices are likely to provide accurate forecasts.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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You have a monthly time series of toy sales, with an upward trend and obvious spikes in the last two months of each year. Which of the following will likely provide good forecasts? O a. Holt's exponential smoothing method, provided that optimal smoothing constants are used. O b. Regression with time itself and dummy variables for 11 of the 12 months. O . The moving averages method, provided that the span is at least 12. O d. None of these choices are likely to provide accurate forecasts.
Transcribed Image Text:You have a monthly time series of toy sales, with an upward trend and obvious spikes in the last two months of each year. Which of the following will likely provide good forecasts? O a. Holt's exponential smoothing method, provided that optimal smoothing constants are used. O b. Regression with time itself and dummy variables for 11 of the 12 months. O . The moving averages method, provided that the span is at least 12. O d. None of these choices are likely to provide accurate forecasts.
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