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A tile manufacturer has just started its business on 1/1/2018 and expected its sales and
total costs for the upcoming year
Month	# of Tiles	Total
	sold	Cost
Jan	420	$ 21,250
Feb	550	$ 26,500
Mar	560	$ 27,000
Apr	650	$ 31,500
May	450	$ 23,000
June	560	$ 26,250
July	680	$ 32,000
Aug	700	$ 32,500
Sep	560	$ 26,250
Oct	600	$ 26,750
Nov	600	$ 28,000
Dec	450	$ 22,000
Solve by Least-squares Regression Method ONLY AND COMPUTE THE FOLLOWING
Requirements:
(i) Variable cost per Tile= $
(ii) Fixed cost per month = $
(iii) Semi Variable costs per month = $
(iv) Semi Fixed costs per month = $
REMEMBER NOT TO SOLVE BY HIGH-LOW METHOD
Need 100% Correct Answer only