PROBLEMS $($solutions to odd$-$numbered problems can be found in Appendix B$)$

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

I

Period

Demand $($units$)$

Period

Demand $($units$)$

$1$

$22$

$5$

$19$

$2$

$16$

$6$

$28$

$3$

$25$

$7$

$22$

$4$

$27$

$1.$

$2.$

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 $0\mathrm{.}1.$