Method of Least Squares Using Computer Spreadsheet Program Susan Lewis, owner of a florist shop, is interested in predicting the cost of delivering floral arrangements. She collected monthly data on the number of deliveries and the total monthly delivery cost (depreciation on the van, wages of the driver, and fuel) for the past year. Required: 1. Using a computer spreadsheet program such as Excel, run a regression on these data. Enter the amount of the intercept (rounded to the nearest whole dollar) and the amount of the X Variable 1 (rounded to the nearest cent). Intercept: $ ______ X Variable 1: $ ________ 2. Using the above results, enter the cost formula for overhead cost. Delivery cost. = $ ____ + ($ ____ times ) 3. Conceptual Connection: What is R^2 based on your results? State the answer as a percent to one decimal place. ______ % Do you think that the number of deliveries is a good predictor of delivery cost? 4. Using the cost formula in Requirement 2, what would predicted cost be for a month wit 300 deliveries? $ _____