Question 4 [19 points] This question requires the use ofgrgtNl. The related le is emergengysewicesgdt. You are not required to show script (although you canaelee to). But you are requiredr to show the regression output that helped you to reach your conclusions. A study of emergency service facilities investigated the relationship between the number of facilities and the average distance travelled (miles) to provide the emergency service. The data collected is available in the dataset Emergencyervicesgdt a. [3 points] Construct a scatterplot, treating average distance travelled as the dependent variable and number of facilities as the independent variable. b. [2 points| From the scatterplot: does a rst order model (simple linear regression) appear to be appropriate? Does a second order model appear to be appropriate? Explain c. [5 points] Use a rst order model (simple linear regression) to develop an estimated regression equation to predict the average distance travelled d. [6 points] Use a second order model to develop an estimated regression equation to predict the average distance travelled e. [3 points] Do you prefer the estimated regression equation developed in part (c) or part (d)? Tell me why - you should evaluate the goodness-offit ofthe model