Kara Battle, owner of Tulip Time, operates a local chain of floral shops. Each shop has its own delivery van. Instead of charging a flat delivery fee, Battle wants to set the delivery fee based on the distance driven to deliver the flowers. Battle wants to separate the fixed and variable portions of her van operating costs so that she has a better idea how delivery distance affects these costs. She has the following data from the past seven months: (Click the icon to view the data.) Read the requirements. Month Miles Driven Van Operating Costs 15,400 $5,200 January.. February ..... 17,900 $5,480 March 15,200 $4,980 April 15,800 $5,350 May 16,900 $5,620 June 16,000 $5,300 July 14,500 $4,800 Use Microsoft Excel to run a regression analysis, then do the following: 1. Determine the company's cost equation (use the output from the Excel regression). 2. Determine the R-squared (use the output from the Excel regression). What does Tulip Time's R-squared indicate? 3. Predict van operating costs at a volume of 15,500 miles assuming the company would use the cost equation from the Excel regression regardless R-squared. Should the company rely on this cost estimate? Why