Q$1($Porecanting$)$ Given the following original forecast and actual data.

Month

Jan

Feb

Mar

AD

Mer

tun

Jut

Aug

Sep

Oct

Nov

Forecast

$500$

$594$

Actual

$605$

$550$

$552$

$573$

$650$

$660$

$682$

$675$

$654$

$669$

$722$

Trend

$50$

$20$

part A

Use a $2$ month waghted moving average with weights for periods t$-60\%1-1-40\%,$ to make a forecast for each month through November. What is the error $($Actual minus Forecast$)$ each month through October?

part $8$

Use exponential smoothing with a $0\mathrm{.}95$ to make a forecast for each month through November, What is the error $($Actual minus Forecast$)$ each month through October?

part C

Use FIT with a $0\mathrm{.}75$ and $10\mathrm{.}2$ to make a forecast for each manth through November. What is the error $($Actual minus Forecast$)$ each month through October?