Nidgett Co. has accumulated data to use in preparing its annual profit plan for the upcoming year. The cost behavior pattern of the maintenance costs must be determined. The accounting staff suggested that linear regression be employed to derive an equation for maintenance hours and costs. Data regarding the maintenance hours and costs for the last year and the results of the regression analysis are as follows: Month Maintenance Cost Machine Hours Jan. 620 Feb. $5,040 3,648 4,320 420 Mar. 520 Apr. 3,331 390 May 5,221 650 June 3,5501 400 July 3,655 430 Aug 5,365 690 Sept. 3,110 640 Oct. 4,866 610 Nov. 3,944 460 Dec. 3.790 440 Sum $51,840 6,270 Average $4,320.00 522.50 Average cost per hour (551,340 + 6,270) = 58.27 (rounded to the nearest cent) r = 99821 2 = 99780 Using the high-low method, total maintenance cost for 600 hours is calculated to be (round to the nearest dollar): O $4.755. 55.328 O $4,777 $5.293 O $5,656