Question: Using the 60-period data shown, what is the Mean Absolute Deviation for the exponential smoothing method with a smoothing constant 0.2? Please round your final

Using the 60-period data shown, what is the Mean Absolute Deviation for the exponential smoothing method with a smoothing constant 0.2? Please round your final answer to the nearest integer.
1. 29
2. 6813
3.None of the answers is correct
4. 114
2010 887 January February March April May June July August September October November December 2006 779 802 818 888 898 902 916 708 695 708 716 784 2007 845 739 871 927 1133 1124 1056 889 857 772 751 820 2008 857 881 937 1159 1072 1246 1198 922 798 879 945 990 2009 917 956 1001 1142 1276 1356 1288 1082 877 1009 1100 998 892 997 1118 1197 1256 1202 1170 982 1297 1163 1053
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