Alpha3 =		Delta3 =
Period	Actual Demand A_t	Exponentially-Smoothed Forecast F_t	Exponentially-Smoothed Trend T_t	Forecast Including Trend FIT_t
1	563	538.0000	23.0000
2	623
3	613
4	625
5	668
6	703
7	643
8	760
9	752
10	767
11	775
12	818
13	798
14	782
15	862
16	911
17	940
18	932
19	961
20	1045
21	938
22	991
23	1023
24	1059
25	1116
26	1154
27	1166
28	1072
29	1177
30	1223
31	1500
32	1551
33	1597
34	1612
35	1595
36	1748
37	1654
38	1815
39	1675
40	1835
41	1886
42	1775
43	1960
44	2010
45	1954
46	1981
47	2087
48	1954
49
a. Use F_1=538, T_1=23, =0.1, and =0.2 and double-exponential smoothing to prepare a forecast for period 49.