A company needs to decide which forecasting method will yield the most accurate

forecasting data for them going forward. They are considering either the Exponential

Smoothing method, or a Weighted Average method. The following table gives the

resulting forecasts of both methods versus the actual sales data$\mathrm{.}2\mathrm{.}1$ Calculate the MAD, MSE and MAPE for each of the forecasting methods above. $[12]$

$2\mathrm{.}2$ Motivate what forecasting method would you recommend based on your calculations? $[4]$

$2\mathrm{.}3$ What value does it hold in calculating the forecasted error data for inventory planners? $[4]$Question $2$: