Question

Cost of Living 2013, revisited. For the first model considered in Exercise 27, with all four predictors in the model, a plot of Leverage values shows the two largest values are Hong Kong (0.18) and Luanda, Angola (0.15).
a) By examining the values of their predictor variables find out why these two cities might be such high leverage points.
b) Why doesn’t Hong Kong show up as an influential point in the diagnostics of the 3 predictor model?


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  • CreatedMay 15, 2015
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