Use Holt’s double exponential smoothing with smoothing coefficients α=0.3, β=.15, S1=24.13 and G1=1.484 to calculate F1,2, G2 and S2. F1,2 = S2 = G2 =
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A department store has recorded the sales of the best selling can opener model during the last 6 months. Observed values of the can opener sales are:
Period
1
2
3
4
5
6
Sales
25
22
26
33
28
30
Use Holt’s double exponential smoothing with smoothing coefficients α=0.3, β=.15, S1=24.13 and G1=1.484 to calculate F1,2, G2 and S2.
F1,2 =
S2 =
G2 =
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