Question $(9)$ A manager uses the following equation to predict monthly receipts:

Y $=40,000+150$ t$.$ What is the forecast for July if t $=0$ in April of this year?

A$.40,450$

B$.40,600$

Question $(10)$

If you know that for a certain time series:

C$\mathrm{.}42,100$

a $=12$ and b $=-2$

$.42,250$

If you use the linear trend equation, what is your forecast for period $5?$

A$.22$

B$.2$

C$.20$

E$.68\mathrm{.}67$

E$.42,400$

D$.14$

E$.10$ Question $2(5$ marks$)$: The weekly sales of E$-$ Cloud Suppliers are in the table below,

Compute a three$-$period moving average and a four$-$period moving average. Compute

MAD for each forecast. Which model is more accurate? Forecast week $7$ with the more

accurate method.

mind $\frac{2E}{n}$

Question $3(2\mathrm{.}5$ marks$)$: Consider the data below, using exponential smoothing with

alpha $=0\mathrm{.}5,$ what would the forecast for period $4$ be$?$

Question $4(2\mathrm{.}5$ marks$)$:

The business analyst for E$-$Cloud Video Sales, Inc. wants to forecast this year's demand

for DVD decoders based on the following historical data:

What is the forecast for this year using a three$-$vear weighted me

weights of $0\mathrm{.}5$ and $0\mathrm{.}3?$