Develop a three-period moving average forecast for April

Develop a three-period moving average forecast for April 2012 through January 2013. Calculate the MFE, MAD, and MAPE values for April through December 2012.MONTH DEMANDJanuary 2012 119February………… 72March………… 113April………… 82May………… 82June………… 131July………… 111August ………… 116September………… 89October………… 95November………… 88December………… 90