For many cities around the world, garbage is an increasing problem. Many North American cities have virtually run out of space to dump the garbage. A consultant for a large American city decided to...

For many cities around the world, garbage is an increasing problem. Many North American cities have virtually run out of space to dump the garbage. A consultant for a large American city decided to gather data about the problem. She took a random sample of houses and determined the following: Y = the amount of garbage per average week (pounds) X1 = Size of the house (square feet) X2 = Number of children X3 = Number of adults who are usually home during the day a. Conduct a regression analysis. b. Is the model valid? c. Interpret each of the coefficients. d. Test to determine whether each of the independent variables is linearly related to the dependent variable.