Item$7$

$5$

points

Time Remaining $4$ hours $42$ minutes $40$ seconds$04$:$42$:$40$

eBookReferencesItem $7$

Time Remaining $4$ hours $42$ minutes $40$ seconds$04$:$42$:$40$

Problem $18-13($Algo$)$

Historical demand for a product is as follows:

DEMAND

April $58$

May $53$

June $78$

July $58$

August $83$

September $78$

a$.$ Using a simple four$-$month moving average, calculate a forecast for October. $($Round your answer to $2$ decimal places.$)$

b$.$ Using single exponential smoothing with $\backslash$alpha $=0\mathrm{.}30$ and a September forecast $=54,$ calculate a forecast for October. $($Round your