Consider the following table showing the monthily volume of sales of a product over a time period of nine months, together with the forecast values produced by two moving average models. The first forecasting model (SMA) is a 2-point simple moving average model, whereas the second forecasting model (WMA) is a 2-point weighted moving average modet with weights of o.3. and 0.7 . c) Explain which of the above forecasting models you would consider to be a more appropriate choice for this time senes (3 points)