Emily Smith decides to buy a fuel-efficient used car. Here are several vehicles she is considering, with the estimated cost to purchase and the age of the vehicle. Age (Years) 10 Vehicle Honda Insight Toyota Prius Toyota Prius Toyota Echo Honda Civic Hybrid Chevrolet Prizm Mazda Protégé Toyota Corolla Acura Integra Scion xB Scion xA Mazda 3 Mini Cooper Estimated Cost ($) |2130 12236 |12136 |14876 18966 |12494 13870 12188 18230 |4589 |7715 |6371 15293 16 18 |4 11 19 15 16 11 19 11 Click here for the Excel Data File, Data file should open in a new browswer window. Select "File" then "Save As" to download the file to your computer and be able to use it in Excel. a. Develop a trendline and state the following. equation should be rounded to 2 decimal places. Negative values should have a minus sign in front of them) (Coefficients should be round to 3 decimal places and the regression Correlation Coefficient: Coefficient of Determination: Regression equation: ŷ = [ b. Interpret the meaning of the slope. c. Estimate the cost of a car that is 6 years old. (Round to 2 decimal places.)

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