Three$-$month weighted moving average, where the weights are $0\mathrm{.}4$ for the most recent month$0\mathrm{.}3$ for the second most recent month, and $0\mathrm{.}3$ for the third most recent month. Exponential smoothing with alpha $=0\mathrm{.}6$ Assume that Month $1$ forecast Month $1$ actual sales $.1.$ Forecast sales for months $6$ using three $-$month moving average method $.2.$ Forecast sales and for months $6$ using three $-$month weighted moving average method $3.$ Forecast sales for months using exponential smoothing method $\mathrm{.}4.$ If actual sales for Month $6$ is $2200,$ calculate the forecast error for each forecast method $($ moving average $,$ weighted moving average $,$ exponential smoothing Which method provides the best forecasting $?$ Explain why $.6.$