(a) Compute four-week and five-week moving averages for the time series. 4-Week Moving Average Forecast 5-Week Moving Average Time Series Value Week Forecast 17 21 19 4. 23 19 6 17 21 8 19 9. 22 10 21 11 16 12 22 2. 3. 5.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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(b) Compute the MSE for the four week maving average forecasts. (Round your answer to two decimal places.)
Compute the MSE for the five-week moving average forecasts. (Round your answer to two decimal places.)
(c) what appears to be the best number of weeks of past data (three, four, or five) to use in the moving average computation? MSE for the three-week maving average is740.
Three weeks appears to be best, because the three-week moving average provides the smallest MSE.
Three weeks appears to be best, because the three-week moving average provides the largest MSE.
Four weeks appears to be best, because the four-week moving average provides the smallest MSE.
OFive weeks appears to be best, because the five-week moving average provides the smalest MSE.
O None appear better than the others, because they all provide the same MSE.
Transcribed Image Text:(b) Compute the MSE for the four week maving average forecasts. (Round your answer to two decimal places.) Compute the MSE for the five-week moving average forecasts. (Round your answer to two decimal places.) (c) what appears to be the best number of weeks of past data (three, four, or five) to use in the moving average computation? MSE for the three-week maving average is740. Three weeks appears to be best, because the three-week moving average provides the smallest MSE. Three weeks appears to be best, because the three-week moving average provides the largest MSE. Four weeks appears to be best, because the four-week moving average provides the smallest MSE. OFive weeks appears to be best, because the five-week moving average provides the smalest MSE. O None appear better than the others, because they all provide the same MSE.
(a) Compute four-week and five-week moving averages for the time series.
4-Week
Moving
Average
Forecast
5-Week
Time Series
Value
Moving
Average
Week
Forecast
17
21
19
4.
23
19
6
17
21
8
19
22
10
21
11
16
12
22
1.
2.
3.
5.
6.
Transcribed Image Text:(a) Compute four-week and five-week moving averages for the time series. 4-Week Moving Average Forecast 5-Week Time Series Value Moving Average Week Forecast 17 21 19 4. 23 19 6 17 21 8 19 22 10 21 11 16 12 22 1. 2. 3. 5. 6.
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