Develop an exponential smoothing forecast (a = 0.3) for February 2012 through January 2013. Assume that your forecast for January 2012 was 100. Calculate the MFE, MAD, and MAPE values for February through December
2013.
MONTH DEMAND
January 2012 119
February............ 72
March............ 113
April............ 82
May............ 82
June............ 131
July............ 111
August ............ 116
September............ 89
October............ 95
November............ 88
December............ 90