Machine hours 27,000 24,000 19,500 Not yet answered Marked out of 5.00 Flag uestion Practical Question: (5 Marks) Lawson Lumber uses the high-low method to estimate electricity cost, which varies in relation to machine hours. The following data are taken from last year. January February March Electricity cost 175,500 169,500 168,750 April 15,000 144,500 May 33,000 166,500 June 36,000 188,250 July 30,000 180,000 August 27,000 171,000 September 39,000 210,500 October 16,500 165,750 November 18,000 170,250 December 21,000 170,250 Required: a) what is the cost driver? b) Calculate Variable cost per unit (slop). (Show all workings) c) Calculate Fixed cost (Intercept) (Show all workings) d) What is the cost function