Monthly sales of storage sheds at Wallace Garden supply are shown in the following table. Using the table, answer the following sub-questions:

month	Actual Sales
January	10
February	12
March	16
April	13
May	17
June	19
July	15
August	20
September	22
October	19
November	21
December	?

1) Monthly sales of storage sheds at Wallace Garden supply areshown in the following table. Using a simple average, what is yourforecast for December sales?

a.15.2

b.16.7

c.20.55

d.None of the above

2) Monthly sales of storage sheds at Wallace Garden supply areshown in the following table. Using the 3-month moving averageforecasting method (simple average), what is your forecast ofDecember sales?

a.15.2

b.16.7

c.20.67

d.None of the above

3) Monthly sales of storage sheds at Wallace Garden supply areshown in the following table. Using exponential smoothingwith =0.2 ,January forecast of 11 units, what is your forecast of Decembersales?

a.15.2

b.16.7

c.18.03

d.none of the above

4) Instead of using a three-month moving average, let us assumethat Wallace Garden Supply would like to forecast sales of storagesheds by weighting the past three months, as follows:

Period	Weight
Last month	3/6
Two months ago	2/6
Three months ago	1/6

What is your forecast of December sales?

a.20.5

b.16.7

c.20.67

d.None of the above

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