Refer to the gasoline sales time series data in the given table. Week Sales (1000s of gallons) 1 17 2 22 3 19 4 24 5 19 6 16 7 22 8 19 9 22 10 20 11 16 12 22 Compute four-week and five-week moving averages for the time series. If required, round your answers to two decimal places. Week Sales 4 Period Moving Average 5 Period Moving Average 1 17 2 22 3 19 4 24 5 19 fill in the blank 1 6 16 fill in the blank 2 fill in the blank 3 7 22 fill in the blank 4 fill in the blank 5 8 19 fill in the blank 6 fill in the blank 7 9 22 fill in the blank 8 fill in the blank 9 10 20 fill in the blank 10 fill in the blank 11 11 16 fill in the blank 12 fill in the blank 13 12 22 fill in the blank 14 fill in the blank 15 Compute the MSE for the four-week and five-week moving average forecasts. If required, round your intermediate calculations to four decimal places and round your final answers to three decimal places. MSE for four-week moving average = fill in the blank 16 MSE for five-week moving average = fill in the blank 17 What appears to be the best number of weeks of past data (three, four, or five) to use in the moving average computation? Recall that MSE for the three-week moving average is 10.228.

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Refer to the gasoline sales time series data in the given table.

Compute four-week and five-week moving averages for the time series. If required, round your answers to two decimal places.

Compute the MSE for the four-week and five-week moving average forecasts. If required, round your intermediate calculations to four decimal places and round your final answers to three decimal places.

MSE for four-week moving average = fill in the blank 16

MSE for five-week moving average = fill in the blank 17
What appears to be the best number of weeks of past data (three, four, or five) to use in the moving average computation? Recall that MSE for the three-week moving average is 10.228.