Using the following numbers, provide the next period forecast using MA$3,$ MA$5,$

weighted $3$ qtr moving average, showing all error columns:

QTR DEMAND

$1105$

$2150$

$393$

$4121$

$5140$

$6170$

$7105$

$8150$

$9150$

$10170$

$11110$

$12130$

$13\_\_\_$