1. 

The data in problem 2.17 in the text gives the boiling Scatterplot of Boiling Point (F) vs Barometric Pressure (in Hg) point of water at different barometric pressures. (Data are 212.5 available on Blackboard.) The following output is for a 210.0 regression of boiling point on the barometric pressure. 207.5 Refer to it to answer the questions below. 205. Boiling Point (F) Source df SS MS F p-value 202.5 Regression 1 376.92 376.92 226 . 04 0. 000 200. Error 15 25 . 01 1. 667 197.5 Total 16 401 . 94 195.0 20 22 24 26 28 30 Barometric Pressure (in Hg)a) (2) Determine the coefficient of determination, R2. How well does this model explain the variation in boiling point? b) (2) Above right is the scatterplot of these data. Note that the solid line is the regression line including all of the data, while the dotted line is the regression line using all the data except the circled points (the two points are nearly overlapping and appear as one point on the graph). Additionally, with the circled points excluded, the R2 = 0.991. Are the circled points likely outliers or inuential points (or both)? Why