4-Week 5-Week Week Sales Moving Average Moving Average 1 17 21 3 19 4 23 5 18 6. 16 20 8 18 9 22 10 20 11 15 12 22 b. Compute the MSE for the four-week and five-week moving average forecasts. Round your intermediate calculations to four decimal places and round your final answers to two decimal MSE for four-week moving average = MSE for five-week moving average =

4-Week 5-Week Week Sales Moving Average Moving Average 1 17 21 3 19 4 23 5 18 6. 16 20 8 18 9 22 10 20 11 15 12 22 b. Compute the MSE for the four-week and five-week moving average forecasts. Round your intermediate calculations to four decimal places and round your final answers to two decimal MSE for four-week moving average = MSE for five-week moving average =

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

Problem 15-07
Refer to the gasoline sales time series data in the given table.
GASOLINE SALES TIME SERIES
Week
Sales (1000s of gallons)
17
21
3
19
4
23
5
18
6.
16
7
20
8
18
22
10
20
11
15
12
22

a. Compute four-week and five-week moving averages for the time series. Round your answers to two decimal places.
4-Week
5-Week
Week
Sales
Moving Average Moving Average
1
17
2
21
19
4
23
18
6
16
7
20
8
18
9
22
10
20
11
15
12
22
b. Compute the MSE for the four-week and five-week moving average forecasts. Round your intermediate calculations to four decimal places and round your final answers to two decimal places.
MSE for four-week moving average =
MSE for five-week moving average

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ISBN:

9780470458365

Author:

Erwin Kreyszig

Publisher:

Wiley, John & Sons, Incorporated