Hudson Marine provides boats sales, service, and maintenance. Boat trailers are one of its top sales items. Suppose the quarterly sales values for the seven years of historical data are as follows. Do not round intermediate calculations Year Quarter 1 Quarter 2 Q3 Q4 Total yearly sales 1 7 13 10 4 34 2 12 20 14 5 51 3 16 28 21 13 78 4 19 29 26 20 94 5 20 32 26 20 98 6 26 35 31 22 114 7 30 39 37 28 134 Questions i need help with are in the images
Hudson Marine provides boats sales, service, and maintenance. Boat trailers are one of its top sales items. Suppose the quarterly sales values for the seven years of historical data are as follows. Do not round intermediate calculations Year Quarter 1 Quarter 2 Q3 Q4 Total yearly sales 1 7 13 10 4 34 2 12 20 14 5 51 3 16 28 21 13 78 4 19 29 26 20 94 5 20 32 26 20 98 6 26 35 31 22 114 7 30 39 37 28 134 Questions i need help with are in the images
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Hudson Marine provides boats sales, service, and maintenance. Boat trailers are one of its top sales items. Suppose the quarterly sales values for the seven years of historical data are as follows. Do not round intermediate calculations
| Year | Quarter 1 | Quarter 2 | Q3 | Q4 | Total yearly sales | |||
| 1 | 7 | 13 | 10 | 4 | 34 | |||
| 2 | 12 | 20 | 14 | 5 | 51 | |||
| 3 | 16 | 28 | 21 | 13 | 78 | |||
| 4 | 19 | 29 | 26 | 20 | 94 | |||
| 5 | 20 | 32 | 26 | 20 | 98 | |||
| 6 | 26 | 35 | 31 | 22 | 114 | |||
| 7 | 30 | 39 | 37 | 28 | 134 |
Questions i need help with are in the images
Transcribed Image Text:c. Compute the seasonal indexes for the four quarters (to 3 decimals).
Adjusted Seasonal Index
Quarter
1
2
3
d. When does Hudson Marine experience the largest seasonal effect?
Hudson Marine experiences the largest seasonal increase in quarter
. The largest seasonal effect is the seasonal decrease in quarter
*
Transcribed Image Text:a. Compute the centered moving average values (first find Four-Quarter Moving Average) for this time series (to 3 decimals).
Centered Moving
Average
t
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
24
25
26
27
28
Sales
7
13
10
4
12
20
14
5
16
28
21
13
19
29
26
20
20
32
26
20
26
35
31
22
30
39
37
28
**
1:00
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