The controller of Blossom Industries has collected the following monthly expense data for analyzing the cost behavior of electricity costs. Total Electricity Costs Total Machine Hours January $1,720 210 February 2,990 320 March 3,560 500 April 4,800 695 May 3,220 500 June 4,930 770 July 4,040 635 August 3,800 570 September 5,050 660 October 4,350 630 November 3,360 320 December 6,150 790

Determine the fixed- and variable-cost components using regression analysis