Period Demand Sales Volume

$\backslash$table$[[1,1150],[2,1275],[3,1550],[4,1600],[5,1650],[6,1725]]$

a Find the four$-$period simple moving average forecasts for Periods $5$ and $6.$

b Find the four$-$period weighted moving average forecasts for Periods $5$ and $6$ using weights of $0\mathrm{.}10,0\mathrm{.}20,0\mathrm{.}30,$ and $0\mathrm{.}40$ from the earliest period to the latest period, respectively. Which set of forecasts is more accurate, the simple moving average forecasts or the weighted

C moving average forecasts? Why is that set of forecasts more accurate in this particular case $($using Data Set E$4)?$

d Will that type of forecast always be more accurate? Why or why not?