Cicada Inc. is accumulating data to prepare its annual profit plan for the coming year. The behaviour pattern of the maintenance costs must be determined. The accounting staff has suggested that regression analysis be employed to derive an equation in the form of y = a + bx for maintenance costs. Regression results using maintenance hours as the activity driver for maintenance costs are shown below: Regression results: Average cost per hour ($43,200 -4,800) = $9.00 Intercept = $684.65 Variable cost coefficient = $7.2884 R2 = 0.99724 Based on the data derived from the regression analysis, 420 maintenance-hours in a month means budgeting maintenance costs at Multiple Choice o $3,697 O O $3,746 $3,870 O $3,461 $3,720 O