Find the 4 quarter moving total, 8 quarter moving total, trend quarterly moving total, season variation, avg season variation & random variation of; 2011=120, 140, 190, 580 & 2012=130, 160, 220 , 160
4 qmt (2011-4=580, 2012-1=590, 2=610,3=640,4=670). 8qmt (2012-1=1170, 2=1200, 3=1250, 4=1310). Trend (2011-3=146.25, 4=150, 1=156.25, 2=163.75, 3=167.5, 4=168.75). SV (2011-3=42.75, 4=(20), 1=(26.25), 2=(3.75), 3=52.5, 4=(8.75).
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