What is the mean absolute deviation


Use the table Television Sales Time Series to answer the questions below.

Television Sales Time Series

(in thousands)

Day

Sales

Day

Sales

1

24.0

9

26.0

2

25.0

10

27.0

3

26.0

11

27.0

4

27.0

12

26.5

5

28.5

13

28.0

6

28.0

14

27.0

7

27.0

15

29.0

8

27.5



 

Part (a): What is the project sales for Day 16 using a 3-day moving average?
Part (b): What is the project sales for Day 16 using a 6-day moving average?
Part (c): Use the mean absolute deviation (MAD) and mean square error (MSE) to determine which average provides the better forecast.

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Accounting Basics: What is the mean absolute deviation
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