Use the data provided here for problems $1-6.$

$\backslash$table$[[$Period$,$Demand $($units$),$Period,Demand $($units$)],[1,22,5,19],[2,16,6,28],[3,25,7,22]]$

Calculate a three$-$period simple moving average forecast for periods $4-8.$

Calculate a three$-$period weighted moving average forecast for periods $4-8$ using the weights $0\mathrm{.}6,0\mathrm{.}3,$ and $0\mathrm{.}1.$