12 12 13 19 14 100 25 20 15 28 10 5 15 25 5 10 15 20 25 Year! Sales CMA 16 19 24.125 Time series plot 3 17 22 18 33 19 19 26 Quarter 1 The centered moving average values smooth out the time series by removing seasonal effects c. Compute the seasonal indexes for the four quarters (to 3 decimals). Adjusted Seasonal Index 2 20 23 3 × × 21 22 22 37 d. When does Hudson Marine experience the largest seasonal effect? 23 31 28.000 Hudson Marine experiences the largest seasonal increase in quarter Does this result seem reasonable? 2 The lar 24 20 This is also reasonable because of decreased boating in the fall and winter 25 26 Hide Feedback 26 38 Partially Correct 27 33 28 26 b. Choose a time series plot that also shows the centered moving average and original time series on the same graph. Hudson Marine has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows. Total Yearly Sales 32 Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 1 5 13 10 4 2 12 18 15 5 3 15 27 24 12 4 19 28 25 19 5 22 33 26 23 104 6 22 37 31 20 110 7 26 38 33 26 123 ཞ ྡ ཊུ ཏྱཾ བྷྲ ླ a. Compute the centered moving average values (Four-Quarter Moving Average) for this time series (to 3 decimals). Centered Moving Average t Sales 1 5 2 13 3 10 × 4 4 * 5 12 6 18 7 15 * 8 5 9 15 10 27 11 24 X 12 12 13 10 MacBook All

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Need help with A & C.

12
12
13
19
14
100
25
20
15
28
10
5
15
25
5
10
15
20
25 Year!
Sales
CMA
16
19
24.125
Time series plot 3
17
22
18
33
19
19
26
Quarter
1
The centered moving average values smooth out the time series by removing seasonal effects
c. Compute the seasonal indexes for the four quarters (to 3 decimals).
Adjusted Seasonal Index
2
20
23
3
×
×
21
22
22
37
d. When does Hudson Marine experience the largest seasonal effect?
23
31
28.000
Hudson Marine experiences the largest seasonal increase in quarter
Does this result seem reasonable?
2
The lar
24
20
This is also reasonable because of decreased boating in the fall and winter
25
26
Hide Feedback
26
38
Partially Correct
27
33
28
26
b. Choose a time series plot that also shows the centered moving average and original time series on the same graph.
Transcribed Image Text:12 12 13 19 14 100 25 20 15 28 10 5 15 25 5 10 15 20 25 Year! Sales CMA 16 19 24.125 Time series plot 3 17 22 18 33 19 19 26 Quarter 1 The centered moving average values smooth out the time series by removing seasonal effects c. Compute the seasonal indexes for the four quarters (to 3 decimals). Adjusted Seasonal Index 2 20 23 3 × × 21 22 22 37 d. When does Hudson Marine experience the largest seasonal effect? 23 31 28.000 Hudson Marine experiences the largest seasonal increase in quarter Does this result seem reasonable? 2 The lar 24 20 This is also reasonable because of decreased boating in the fall and winter 25 26 Hide Feedback 26 38 Partially Correct 27 33 28 26 b. Choose a time series plot that also shows the centered moving average and original time series on the same graph.
Hudson Marine has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows.
Total Yearly
Sales
32
Year
Quarter 1
Quarter 2
Quarter 3
Quarter 4
1
5
13
10
4
2
12
18
15
5
3
15
27
24
12
4
19
28
25
19
5
22
33
26
23
104
6
22
37
31
20
110
7
26
38
33
26
123
ཞ  ྡ ཊུ ཏྱཾ བྷྲ  ླ
a. Compute the centered moving average values (Four-Quarter Moving Average) for this time series (to 3 decimals).
Centered Moving
Average
t
Sales
1
5
2
13
3
10
×
4
4
*
5
12
6
18
7
15
*
8
5
9
15
10
27
11
24
X
12
12
13
10
MacBook All
Transcribed Image Text:Hudson Marine has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows. Total Yearly Sales 32 Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 1 5 13 10 4 2 12 18 15 5 3 15 27 24 12 4 19 28 25 19 5 22 33 26 23 104 6 22 37 31 20 110 7 26 38 33 26 123 ཞ ྡ ཊུ ཏྱཾ བྷྲ ླ a. Compute the centered moving average values (Four-Quarter Moving Average) for this time series (to 3 decimals). Centered Moving Average t Sales 1 5 2 13 3 10 × 4 4 * 5 12 6 18 7 15 * 8 5 9 15 10 27 11 24 X 12 12 13 10 MacBook All
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman