GameStop $($Tampa$)$ is forecasting sales for the Playstation $5$ in week $6,$ below are

the sales figures for the last $5$ weeks:

Provide the equation $($formula$)$ and the forecast for week $6$ sales using the specified method. You

may type or handwrite your answers in the space provided but you must stay within the text box

for each question. Round your final answers to the nearest whole number.

$1\mathrm{.}1$ 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$)$

time t Week Sold

$15$ Weeks ago: $700$

$24$ Weeks ago: $725$

$33$ Weeks ago: $740$

$42$ Weeks ago: $760$

$51$ Week ago: