Question

Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks.

Week	Sales (1,000s of gallons)
1	16
2	20
3	18
4	22
5	17
6	15
7	20
8	18
9	22
10	20
11	15
12	22

a) using a weight of 1/2 for the most recent observation, 1/3 for the second most recent observation, and 1/6 for third recent observation, compute a three-week weighted moving average for time series. (Round your answers to two decimal places)

decimal places.)

Week	Time Series Value	Weighted Moving Average Forecast
1	16
2	20
3	18
4	22
5	17
6	15
7	20
8	18
9	22
10	20
11	15
12	22

b) Compute the MSE for the weighted moving average in part (a)

Answer 1