Chapter 8 Practice Answer the following information using the scatterplot of data provided with an explanatory variable of distance and a response variable of fare (ticket price). Provide your answer in complete sentences and show all necessary work. 400 Atlanta for Distance Fare 350 Baltiname 219 943 300 Dallas 219 250 Denver 1 190 Detroit 602 249 200 Kansas City 683 141 Las Vegas 1719 Miami Memphis 183 200 600 1000 1400 1800 Minneapolis 894 209 New Orleans 419 199 NY 749 248 749 301 Orlando Philadelphia 657 51 Loans 461 Salt Lake 2150 Summary Statistics Mean 243 St Dev 197.8 56.17 Correlation Question Answer 1. Find (Hint: what represents r?) 2. Explain what r means in this context. 3. Find the slope of the regression line. Explain what the slope means in this context 4. Find the y-intercept of the regression line. Explain what the y-intercept means in this context. 5. Write the equation of the linear model. Estimate the fare for a 200-mile flight. 7. Estimate the fare for a 2000-mile flight. 8. The fare to fly to Los Angeles, 1719 miles from Atlanta, is $212. Find the residual 9. In general, a positive residual means... 10. In general, a negative residual means