For problems $1$ through $3,$ use the following time series data:

$\backslash$table$[[$PERIOD$,$DEMAND$],[10,248],[11,370],[12,424],[13,286],[14,444]]$

$(*)$ Develop a three$-$period moving average forecast for periods $13-15.$

$(*)$ Develop a two$-$period weighted moving average forecast for periods $12$ through $15.$ Use weights of $0\mathrm{.}7$ and $0\mathrm{.}3,$ with the most recent observation weighted higher.

$(*)$ Develop an exponential smoothing forecast $)=(0\mathrm{.}25$ for periods $11$ through $15.$ Assume that your forecast for period $10$ was $252.$