Exercise 8.12 introduces data on the average monthly temperature during the month babies rst try to crawl (about 6 months after
birth) and the average rst crawling age for babies born in a given month. A scatterplot of these two variables reveals a potential outlying month when the average temperature is about 53F and average crawling age is about 28.5 weeks. Does this point have high leverage
The point has a high leverage as it would act as an infinitesimal point that will have a very huge/drastic impact on the fit of the model, and this impact can be seen in such ways as listed below :
Smaller coefficient of determination
Higher sum of squares error
removing this point will eliminate these drastic impact and make the correlation to be better.
