Date: 7. a) Determine an equation for the line of best fit in question 5. Chapter 3 Give the slope and vertical intercept. Review b) How well does the line of best fit approximate the data? Explain. 3.5 Analysis and Conclusions, textbook pages 182-189 8. Describe the error in regression for each situation. a) b) c) 9. The table shows how many calories are burned in 1 h by a person walking at various speeds. Walking Speed (km/h) 3.3 4.0 4.8 5.6 6.4 7.2 8.0 Calories Burned 170 204 224 258 340 428 544 a) Perform regression analysis to determine the strength of the relationship and the equation of the line of best fit. b) Discuss whether a cause and effect relationship exists