Use a- 0.2 to compute the exponential smootning forecasts for the time seres. Time Series Value Week Forecast 19

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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(C) Use a - 0.2 to compute the exponential smoothing forecasts for the time senies.
Time Series
Week
Forecast
Value
1
19
2
14
5
3
16
2
4
12
18
4
15
3
Compute MSE. (Round your answer to two decimal places.)
MSE -
What is the forecast for week 77 (Round your answer to two decimal places.)
(d) Compare the three-week moving average approach with the exponential smoothing approach using a = 0.2. Which appears to provide more accurate forecasts based on MSE? Explain.
O The exponential smoothing using a - 0.2 provides a better forecast since it has a larger MSE than the three-week moving average approach.
O The three-week moving average provides a better forecast since it has a smaller MSE than the smoothing approach.
• The exponential smoothing using a = 0.2 provides a better forecast since it has a smaller MSE than the three-week moving average approach.
O The three-week moving average provides a better forecast since it has a larger MSE than the smoothing approach.
(e) Use a smoothing constant of a - 0.4 to compute the exponential smoothing forecasts.
Time Series
Week
Forecast
Value
1
19
2
14
3
16
4
12
18
6.
15
Transcribed Image Text:(C) Use a - 0.2 to compute the exponential smoothing forecasts for the time senies. Time Series Week Forecast Value 1 19 2 14 5 3 16 2 4 12 18 4 15 3 Compute MSE. (Round your answer to two decimal places.) MSE - What is the forecast for week 77 (Round your answer to two decimal places.) (d) Compare the three-week moving average approach with the exponential smoothing approach using a = 0.2. Which appears to provide more accurate forecasts based on MSE? Explain. O The exponential smoothing using a - 0.2 provides a better forecast since it has a larger MSE than the three-week moving average approach. O The three-week moving average provides a better forecast since it has a smaller MSE than the smoothing approach. • The exponential smoothing using a = 0.2 provides a better forecast since it has a smaller MSE than the three-week moving average approach. O The three-week moving average provides a better forecast since it has a larger MSE than the smoothing approach. (e) Use a smoothing constant of a - 0.4 to compute the exponential smoothing forecasts. Time Series Week Forecast Value 1 19 2 14 3 16 4 12 18 6. 15
Consider the following time series data.
2| 3
4 56 7
Month
17 21 13
Value
22
11
18
10
Transcribed Image Text:Consider the following time series data. 2| 3 4 56 7 Month 17 21 13 Value 22 11 18 10
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