ANLY620

For the data listed below,

i) Create a forecast with 4-day moving average,

ii) Create a forecast using exponential smoothing method with smoothing constant equal to 0.6,

iii) Compute Root Mean Squared Error (RMSE) and identify which of the two methods produces a forecast with better accuracy.

Day Sales ('000 $)1173521719320254129557176431772681826699627310204911258512489513205714695515223916236917688918169719309207152152312215032314572417852520412624927747