The file Philly contains a sample of 25 neighborhoods in Philadelphia. Variables included are neighborhood population, median sales price of homes in 2014, mean number of days homes were on the market in 2014, number of homes sold in 2014, median neighborhood household income, percentage of residents in the neighborhood with a bachelor's degree or higher, and whether the neighborhood is considered "hot" (coded as 1 = yes, 0 = no). (Data extracted from bit.ly/13M7KuP.) You want to be able to predict median sales price of homes. Completely analyze the data.