$$

cllook

Convider the filtowing time veries data.

$\backslash$table$[[$Week$,1,2,3,4,5,6],[$Value$,19,12,15,11,17,14]]$

$($a$)$ Mean absobule error

If required, round your anamer be oese decimal place.

$$

$($b$)$ Mem wquared erier

If tequibed, reand vher wimer to one decrnal places

$8$

$($c$)$ Hean movhle persentiay erner

$$

$($d$)$ What is the formant for meek $??$

$$

$*$intintentint

trabrect