The controller of Crane Industries has collected the following monthly cost data for analyzing the behaviour of electricity costs. Total Total Electricity Costs Machine Hours January $ 2,200 260 February 2.940 390 March 3,530 500 April 4,520 685 May 3,150 490 June 4,990 700 July 4,020 645 August 3.800 570 September 5,080 675 October 4,380 615 November 3,360 390 December 6,150 720 (a) Your answer is incorrect. Calculate the unit variable costs and fixed costs using regression analysis for this mixed cost. Present your solution in the form of a cost formula. (Round answers to 2 decimal places, e.g. 2.45.) Intercept Slope 6.70 300.86 The cost equation is: $ 6.70 + $ 300.86 units produced = Total cost