evelop a$$three$-$period moving average forecast for periods

$13$minus$15.$

$$

Period

Demand

$10$

$287287$

$11$

$419419$

$12$

$431431$

$13$

$254254$

$14$

$452452$

Part $2$

Calculate the forecasts for periods

$13$minus$15$

by using a$$three$-$period moving average model $($enter your responses rounded to the nearest whole$$number$).$

Part $3$

Part $4$

Period

Demand

Forecast

$10$

$287287$

$11$

$419419$

$12$

$431431$

$13$

$254254$

enter your response here

$14$

$452452$

enter your response here

$15$

enter your response here