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
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
Chapter4: Linear Functions
Section4.3: Fitting Linear Models To Data
Problem 23SE: The US. import of wine (in hectoliters) for several years is given in Table 5. Determine whether the...
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Need help with A & C.
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.
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
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