5. In the following data r = size of a park in acres and y - number of park employees 39334 324 17315 8244 620231 43501 8625 31572 14276 21094 95 95 102 69 67 77 81 116 51 36 103289 130023 16068 3286 24089 6309 14502 62595 23666 35833 96 71 76 112 43 87 131 136 80 52 (a) Use Excels Data Analysis to find the equation of the regression line and a Line Fit Plot. Write the equation of the regression line. Do you think the line gives accurate predictions? Why? (b) Delete the observation with largest a value from the data set. Redo the Data Analysis to obtain the new equation of the regression line and the new Line Fit Plot calculations for the new data set. Write the equation of the regression line. Does this observation greatly affect the equation of the line? Compare the signs of the slopes of the two regression lines