LO3 (Cost Behavior) Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Management would like to better understand the variable and fixed portions of it car washing costs. The company operates its own car wash facility in which each rental car that is returned is thoroughly cleaned before being released for rental to another customer. Management believes that the variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following data have been compiled: Month Rental Returns Car Wash Costs January 2,380 $10,825 February March 2,421 $11,865 2,586 $11,332 April May June 2,725 $12,422 2,968 $13,850 3,281 $14,419 July 3,353 $14,935 August 3,489 $15,738 September 3,057 $13,563 October 2,876 $11,889 November 2,735 $12,683 December 2,983 $13,796 Required: 1- Using the high-low method, estimate the fixed cost of Car Wash per month and the variable cost of Car Wash per Rental Returns. Round off the fixed cost to the nearest whole dollar and the variable cost to the nearest whole cent. 2- If it is estimated that 4,000 Rental Returns will be run in next month, what is the expected total Car Wash? 3- Prepare a scattergraph plot. (Place car wash costs on the vertical axis and rental returns on the horizontal axis.) 4- Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to wash cars. The total fixed cost should be estimated to the nearest dollar and the variable cost per rental return to the nearest cent. Comment on your answer