just need final answers and little explanation..please experts hurry up its so urgent..

Question 3 (10 points) Suppose the number of houses offering Halloween candy is given by the following table!: time number 6pm 14 7pm 16 8pm 17 9pm 15 We want to model the number of houses as a + b(t - 6), where t = 6, 7, 8,9 is the pm hour. (a) (4 points) Set up a linear system whose solution ideally is the vector of unknowns. (The system may be inconsistent.) System (b) (3 points) Find the least-squares solution: a= b = (c) (3 points) Fill in the right column of the table below with the prediction from your model: time number model 6pm 14 7pm 16 8pm 17 9pm 15 1 Boo