$1$ Forecast using the Na$$ve Approach $(5$

points$)$

$1\mathrm{.}2$ Equation and forecast using a three$-$week

moving average $(10$ points$)$

$1\mathrm{.}3$ Equation and forecast using a weighted

average using $\mathrm{.}75$ for last week $($time t $=5),$

$\mathrm{.}15$ for $2$ weeks ago $($time t $=4)$ and $\mathrm{.}10$ for $3$

weeks ago $($time t $=3)(15$ points$)$

$1\mathrm{.}4$ Equation and forecast using Exponential

Smoothing with a smoothing constant equal

to $\mathrm{.}40.$ To start, use a forecast of $700$ for time

t $=2.$ Round your final answer to the nearest

whole number $(20$ points$)$