Using the exponential smoothing method
F(2) = 0.5*Actual(1) + (1-0.5)*F(1)
= 0.5*8 + 0.5*7
= 7.5
F(3) = 0.5*8 + 0.5*7.5
= 7.8
F(4) = 0.5*6 + 0.5*7.8
= 6.9
F(5) = 0.5*10 + 0.5*6.9
= 8.5
F(6) = 0.5*11 + 0.5*8.5
= 9.8
F(7) = 0.5*7 + 0.5*9.8
= 8.4
F(8) = 0.5*12 + 0.5*8.4
= 10.2
F(9) = 0.5*13 + 0.5*10.2
= 11.6
F(10) = 0.5*10 + 0.5*11.6
= 10.8
F(11) = 0.5*9 + 0.5*10.8
= 9.9
F(12) = 0.5*8 + 0.5*9.9
= 9
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