$Nave$ Forecast

Period Demand Forecast Error Abs Error MAPE Mean Abs $\%$ Error $Sq$ Error $U$ Stat Denominator

$182$

$26382$

$38163$

$48281$

$577$

$692$

$790$

$861$

$962$

$1053$

$1153$

$1269$

$1379$

$1456$

$1560$

$1693$

$1799$

$1882$

$1956$

$2094$

$1.$ What observations can you make about the demand pattern, just from looking $atit?Do$ you see any patterns?

$2.Is$ this forecast accurate? $Isit$ biased? How did you draw this conclusion?

$3.$ Provide $an$ interpretation for the MAPE $(Mean$ Abs $\%$ Error$).$ What does $it$ mean $in$ words?

$12345$

$25$

$50$

$75$

$100$

$125$

$150$

Demand