Your manager is trying to determine what forecasting method to use. Based upon the following historical data, calculate the following forecast and specify what procedure you would utilize.

MONTH DEMAND

January $59$

February $65$

March $65$

April $67$

May $71$

June $70$

July $77$

August $77$

September $77$

October $75$

November $83$

December $81$

Calculate the single exponential smoothing forecast for February through December using an initial forecast $($F$1=$F$-$January$)$ of $63.($Use alpha of $0\mathrm{.}2)$ What is the forecast for December? $($Round your answer to $2$ decimal places$)$

Question $14$ options:

a$)$

$74\mathrm{.}37$

b$)$

$72\mathrm{.}22$

c$)$

$66\mathrm{.}30$

d$)$

$71\mathrm{.}52$