Presidents and first ladies: The following table presents the ages of 8 U.S. presidents and their wives on the first day of their presidencies. Name Her Age His Age George and Barbara Bush 55 64 Ronald and Nancy Reagan 59 69 Jimmy and Rosalynn Carter 49 52 Gerald and Betty Ford 56 61 Richard and Pat Nixon 56 56 Lyndon and Lady Bird Johnson 50 55 John and Jacqueline Kennedy 31 43 Dwight and Mamie Eisenhower 56 62(a) Compute the least-squares regression line for predicting the president's age from the first lady's age. Round the slope and y-intercept values to at least four decimal places. Regression line equation: y = X 5(a) Compute the least-squares regression line for predicting the president's age from the first lady's age. TP to Troll (b) Which point is an outlier? (c) Remove the outlier and compute the least-squares regression line for predicting the president's age from first lady's age. (d) Is the outlier influential? Explain