Start by importing the data in the file 'Lab9UStemp.csv'. These data comprise the latitude, longitude, and January temperature for 56 U.S. cities. To make life simple, the variable LONG is the longitude rescaled to be between 0 (Portland OR, the westernmost of the cities) and 1 (Portland ME, the easternmost). Similarly LAT is the latitude having been rescaled from 0 (Key West FL) to 1 (Seattle WA). Thus a scatterplot of LAT versus LONG lets you visualize the geographic locations of these cities. You need to fit a multiple linear regression models with JANTEMP as the response variable and also need to do residuals analysis