$2)$ Historical demand for a product is

Demand

January

February

March

April

May

June

$14$

$13$

$17$

$14$

$18$

$17$

a$)$ What is the MSE for three months moving average? What is the forecast for July?

b$)$ What is the MSE for three months$$ weighted moving average with the following weights?

W$1=0\mathrm{.}15$ W$2=0\mathrm{.}35$ W$3=0\mathrm{.}50$

What is the forecast for July?

c$)$ What is the MSE for Exponential Smoothing techniques if $\backslash$alpha $=0\mathrm{.}30?$

What is the forecast for July?

d$)$ Based on MSE, which techniques would you like to use?

e$)$ Calculate MAD or MAE for exponential smoothing given in part c$.$