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.