b. Compute the seasonal indexes for the four quarters (to 3 decimals). Hudson Marine provides boats sales, service, and maintenance. Boat trailers are one of its top sales items. Suppose the quarterly sales values forthe seven years of historical data are as follows. Do not round intermediate calculations.Year1234567Quarter 1 Quarter 2713101518242430202630363641Quarter 310162423302936Quarter 4481220212225Total YearlySales34547791111111132 a. Compute the centered moving average values (first find Four-Quarter Moving Average) for this time series (to 3 decimals).Centered MovingAveraget12345678910111213141516171819202122232425262728Sales7131041020168152624121830232024363021243629223041362513***

(a) The objective is to compute the centered moving average values.

Answered: t 1 JULE SITE 2 3 5 6 7 8 9 10 11 12 13…

t 1 JULE SITE 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Sales 7 13 10 4 10 20 16 8 15 26 24 12 18 30 23 20 24 36 30 21 24 36 29 22 30 41 36 25 Centered Moving Average 13

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

100%

b. Compute the seasonal indexes for the four quarters (to 3 decimals).

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
1
2
3
4
5
6
7
Quarter 1 Quarter 2
7
13
10
15
18
24
24
30
20
26
30
36
36
41
Quarter 3
10
16
24
23
30
29
36
Quarter 4
4
8
12
20
21
22
25
Total Yearly
Sales
34
54
77
91
111
111
132

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
22
23
24
25
26
27
28
Sales
7
13
10
4
10
20
16
8
15
26
24
12
18
30
23
20
24
36
30
21
24
36
29
22
30
41
36
25
13
***

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