$\backslash$table$[[$MONTH$,$SALES$],[$Jan$,16,000],[$Feb$,12,000],[$Mar$,17,000],[$Apr$,19,000],[$May$,22,000],[$Jun$,28,000]]$

c$.$

b$.$ Compute the sales forecast for July using the approaches given below. Do not round intermediate calculations. Round your answers to the nearest whole number.

three$-$month moving average computers

weighted three$-$month moving average using $0\mathrm{.}70$ for June, $0\mathrm{.}20$ for May, and $0\mathrm{.}10$ for April computers

a linear trend equation computers

exponential smoothing with $o($smoothing constant$)$ equal to $0\mathrm{.}50,$ assuming a February forecast of $16,000$ computers MAD $($three$-$month moving average$)$: computers

MAD $($weighted three$-$month moving averoge$)$ computers

MAD $($linear trend equation'$)$: computers MAD $($exponential smoothing$)$: computers

Which is the best? Why?

$-$Select$-$

is better because it provides the $-$ Select$-$ MAD.