Current Attempt in Progress The controller of Sheridan Production has collected the following monthly expense data for analyzing the cost behavior of electricity costs Total Electricity Costs Total Machine Hours January $2,370 210 February 2,920 390 March 3,580 470 April 4,530 690 May 3,210 470 June 4,980 790 July 4,150 625 August 3,850 530 September 5,160 665 October 4,240 605 November 3,240 390 December 6,570 810 (a) Determine the fixed- and variable-cost components using the high-low method. Fixed-costs Variable cost per machine hour 5 S