SOM 307 - Data Analysis and Modeling » Fall 2021 » Weighted MA 4 MC

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Question #1
Given the following data and a 4-period weighted moving average. t At 1 17 2 15 3 19 4 13 5 18 Supposed the weights of the four periods are 0.1, 0.2, 0.3, 0.4 for the OLDEST to NEWEST periods, respectively. Compute the 4-period weighted moving average in period 5.
A.   15.95
B.   16.4
C.   14.7
D.   18.4
E.   12.7
Question #2
Given the following data and a 4-period weighted moving average. t At 1 19 2 13 3 11 4 11 5 14 Supposed the weights of the four periods are 0.1, 0.15, 0.25, 0.5 for the OLDEST to NEWEST periods, respectively. Compute the 4-period weighted moving average FORECAST for period 6.
A.   17.25
B.   17.85
C.   13.05
D.   17.65
E.   12.7  
Question #3
Given the following data and a 4-period weighted moving average. t At 1 14 2 20 3 19 4 13 5 12 Supposed the weights of the four periods are 2, 4, 6, 7 for the OLDEST to NEWEST periods, respectively. Compute the 4-period weighted moving average in period 5.
A.   14.63
B.   12.95
C.   14.39
D.   15.47
E.   16.05
Question #4
Given the following data and a 4-period weighted moving average. t At 1 17 2 14 3 20 4 19 5 17 Supposed the weights of the four periods are 0.1, 0.15, 0.35, 0.4 for the OLDEST to NEWEST periods, respectively. Compute the average of age of data in this 4-period weighted moving average.
A.   2
B.   1.95
C.   1.85
D.   2.15
E.   2.05

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