Linear Function Moe's Tavern is reviewing its food costs for 2022 based on meals served over the last year: Month Meals Served Food Costs January 110 $5,500 February 90 $4,500 March 80 $4,400 April 100 $5,000 May 130 $6,000 June 120 $5,600 July 70 $4,000 August 60 $3,200 September 50 $3,400 October 40 $2,400 November 80 $4,200 December 100 $5,500 a. b. C. Run the regression analysis in Excel. Type the regression cost function equation on the spreadsheet and determine the food cost when 105 meals are served. Must reference the regression data for marks. (2 marks) Using the high-low method, state the cost function for staffing costs. Using the cost function determined from the high-low method, estimate the food costs for a month in which 105 meals are served. (2 marks) Why is there a difference between the high-low method costs and the regression analysis costs? (1 mark) d. Why is Goodness of Fit (R Square) important? (1 mark)