Question 5 I8 pointsl [Corresponds to Question 7 in Mendenhall and Sincich Text] Professional Geographer published a study of urban and rural counties in the western United States. University of Nevada (Reno) researchers asked a sample of 256 county commissioners to rate their \"home\" county on a scale of 1 (most rural) to 10 (most urban). The urban/rural rating (y) was used as the dependent variable in a first-order multiple regression model with six independent variables : total