The controller of Wildhorse industries has collected the following monthly cost data for analyzing the behavior of electricity costs. Determine the fixed costs and unit variable costs using regression analysis (We recommend the use of Excel.) (Round fixed cost Determine the fixed costs and unit variable costs using regression analysis (We recommend the use of Excel) (Round fixed cost to 3 decimal places e.s, 1.252 and variable cost to 5 decimal places e.g. 1.25125.) Fiond costs Unit variable costs Amachine hour eTextbook and Media Assistance Used eTextbook Video What electricity cost does the cost equation estimate for a level of activity of 500 machine hours? (Round unit cost and final answers to 2 decimal places e. 1,250.25.) Electricity costs By what amount does this differ from Marchis observed cost for 500 machine hours? (Round answer to 2 decimal places es. 1.25 ) Amount differ