Problem $2.$ Using the average price spent on Electronic items$/$Cell phones$/$laptop$/$tablet$,$ provided

above, as our time series data,

a$)$ Using the moving average of two period forecast the spending on this item for Semesters

$6$ and $8(0\mathrm{.}5$ pt$)$

b$)$ Using simple exponential smoothing method and w$=0\mathrm{.}60,$ forecast the spending for this

item in Semesters $6$ and $8(1$ pt$)$

c$)$ Using double exponential smoothing method and w$=0\mathrm{.}60,\backslash$upsilon $=0\mathrm{.}2,$ forecast the spending

for this item in Semesters $6$ and $8(2$ pts$)$