For questions $1$ to $4.$

Based on the following information about the actual demand for a product for the last $4$ weeks, to answer the questions below, please complete the table using Simple Average and Exponential Smoothing approach with alpha $=0\mathrm{.}5$

$\backslash$table$[[$Week$,$Demand,Forecast,$\backslash$table$[[$Forecast$],[$ Simple Average