Create an exceptional smoothing forecast with alpha 02 and f
Create an exceptional smoothing forecast with alpha =0.2 and find the MSE & MAD.
| Area | State_income |
| 2004Q1 | 25739844 |
| 2004Q2 | 26051804 |
| 2004Q3 | 26148468 |
| 2004Q4 | 26662680 |
| 2005Q1 | 27072828 |
| 2005Q2 | 27434924 |
| 2005Q3 | 27912832 |
| 2005Q4 | 28478792 |
| 2006Q1 | 29361392 |
| 2006Q2 | 29762808 |
| 2006Q3 | 30188004 |
| 2006Q4 | 30586372 |
| 2007Q1 | 31473828 |
| 2007Q2 | 32084344 |
| 2007Q3 | 32364432 |
| 2007Q4 | 32807044 |
| 2008Q1 | 33793200 |
| 2008Q2 | 34006456 |
| 2008Q3 | 33957960 |
| 2008Q4 | 33766452 |
| 2009Q1 | 33015220 |
| 2009Q2 | 33088744 |
| 2009Q3 | 33162128 |
| 2009Q4 | 33182296 |
| 2010Q1 | 33756764 |
| 2010Q2 | 34022020 |
| 2010Q3 | 34267116 |
| 2010Q4 | 35029332 |
| 2011Q1 | 35854088 |
| 2011Q2 | 36437464 |
| 2011Q3 | 36904828 |
| 2011Q4 | 37325484 |
| 2012Q1 | 38325008 |
| 2012Q2 | 38525916 |
| 2012Q3 | 38576316 |
| 2012Q4 | 39584120 |
| 2013Q1 | 39304143 |
| 2013Q2 | 39848594 |
| 2013Q3 | 39978331 |
| 2013Q4 | 40044614 |
Solution
Area State_income Forecast Ft=Ft-1 +?(At-1 -Ft-1) prediction errors (e) e2 2004Q1 25739844 25739844 0 0 2004Q2 26051804 25739844 311960 9.732E+10 2004Q3 26148468 25802236 346232 1.199E+11 2004Q4 26662680 25871482.4 791197.6 6.26E+11 2005Q1 27072828 26029721.92 1043106.1 1.088E+12 2005Q2 27434924 26238343.14 1196580.9 1.432E+12 2005Q3 27912832 26477659.31 1435172.7 2.06E+12 2005Q4 28478792 26764693.85 1714098.2 2.938E+12 2006Q1 29361392 27107513.48 2253878.5 5.08E+12 2006Q2 29762808 27558289.18 2204518.8 4.86E+12 2006Q3 30188004 27999192.95 2188811.1 4.791E+12 2006Q4 30586372 28436955.16 2149416.8 4.62E+12 2007Q1 31473828 28866838.53 2606989.5 6.796E+12 2007Q2 32084344 29388236.42 2696107.6 7.269E+12 2007Q3 32364432 29927457.94 2436974.1 5.939E+12 2007Q4 32807044 30414852.75 2392191.3 5.723E+12 2008Q1 33793200 30893291 2899909 8.409E+12 2008Q2 34006456 31473272.8 2533183.2 6.417E+12 2008Q3 33957960 31979909.44 1978050.6 3.913E+12 2008Q4 33766452 32375519.55 1390932.4 1.935E+12 2009Q1 33015220 32653706.04 361513.96 1.307E+11 2009Q2 33088744 32726008.83 362735.17 1.316E+11 2009Q3 33162128 32798555.87 363572.13 1.322E+11 2009Q4 33182296 32871270.29 311025.71 9.674E+10 2010Q1 33756764 32933475.43 823288.57 6.778E+11 2010Q2 34022020 33098133.15 923886.85 8.536E+11 2010Q3 34267116 33282910.52 984205.48 9.687E+11 2010Q4 35029332 33479751.61 1549580.4 2.401E+12 2011Q1 35854088 33789667.69 2064420.3 4.262E+12 2011Q2 36437464 34202551.75 2234912.2 4.995E+12 2011Q3 36904828 34649534.2 2255293.8 5.086E+12 2011Q4 37325484 35100592.96 2224891 4.95E+12 2012Q1 38325008 35545571.17 2779436.8 7.725E+12 2012Q2 38525916 36101458.54 2424457.5 5.878E+12 2012Q3 38576316 36586350.03 1989966 3.96E+12 2012Q4 39584120 36984343.22 2599776.8 6.759E+12 2013Q1 39304143 37504298.58 1799844.4 3.239E+12 2013Q2 39848594 37864267.46 1984326.5 3.938E+12 2013Q3 39978331 38261132.77 1717198.2 2.949E+12 2013Q4 40044614 38604572.42 1440041.6 2.074E+12 65763684 1.353E+14 MSE 1.84748E-16 MAD 3.80149E-10
