June Maintenance Machine Month Cost Hours Jan. $ 4,68 640 Feb. 3,480 480 Mar. 4.00 560 Apr. 3, 220 450 May 4.750 660 3,360 47e July 3,430 43e Aug. 4,870 7ee Sept. 4,668 650 Oct. 630 Nov. 3,780 512 Dec. 3,560 sae Sun $48.000 $, 6.740 Average $ 4,000 $ $ 562 Average cost per hour $ 7.ee a intercept) ( $38.7146 b (coefficient) 7.2527 Standard error of the estimate 52.9466 R-squared 0.9935 t-value for b 39.1296 Use the high-low method to generate the equation to estimate future maintenance costs. (Do not round Intermediate calculations.) Multiple Choice y-57-6.9% y = 4000-562 y-39-21 Nare e . Ness of these are shies are correst