Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks. Sales (1,000s Week of gallons) 1 17 2 21 3 19 4 23 5 18 TUB 6 16 7 19 8 pa 9 02 10 19 11 12 20 1 (a) Using a weight of for the most recent observation, for the second most recent observation, and. 2 Week Time Series Value Weighted Moving Average Forecast T 17 21 2 3 19 5 9 23 18 16 7 18 X B 9 16 20 10 18 11 13 12 20 Enter a number. B for third most recent observation, compute a three-week weighted moving average for the time series. (Round your answers to two decimal places) 6 (b) Compute the MSE for the weighted moving average in part (a). MSE === e X Do you prefer this weighted moving average to the unweighted moving average? The MSE for the unweighted moving average is 9.88. The weighted movin

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.1: Measures Of Center
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Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks.
Sales (1,000s
Week
of gallons)
1
17
2
21
3
19
4
23
5
18
TUB
6
16
7
19
8
pa
9
02
10
19
11
12
20
1
(a) Using a weight of for the most recent observation, for the second most recent observation, and.
2
Week
Time Series
Value
Weighted Moving
Average Forecast
T
17
21
2
3
19
5
9
23
18
16
7
18
X
B
9
16
20
10
18
11
13
12
20
Enter a number.
B
for third most recent observation, compute a three-week weighted moving average for the time series. (Round your answers to two decimal places)
6
(b) Compute the MSE for the weighted moving average in part (a).
MSE
===
e
X
Do you prefer this weighted moving average to the unweighted moving average? The MSE for the unweighted moving average is 9.88.
The weighted movin
Transcribed Image Text:Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks. Sales (1,000s Week of gallons) 1 17 2 21 3 19 4 23 5 18 TUB 6 16 7 19 8 pa 9 02 10 19 11 12 20 1 (a) Using a weight of for the most recent observation, for the second most recent observation, and. 2 Week Time Series Value Weighted Moving Average Forecast T 17 21 2 3 19 5 9 23 18 16 7 18 X B 9 16 20 10 18 11 13 12 20 Enter a number. B for third most recent observation, compute a three-week weighted moving average for the time series. (Round your answers to two decimal places) 6 (b) Compute the MSE for the weighted moving average in part (a). MSE === e X Do you prefer this weighted moving average to the unweighted moving average? The MSE for the unweighted moving average is 9.88. The weighted movin
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