QUESTION 1 During the recession that began in 2008, not only did some people stop making house payments, but they also stopped making payments for local government services such as trash collection and water and sewer services. The following data have been collected by an accountant who is performing an audit of account balances for a major city billing department. The population from which the data were collected represents those accounts for which the customer had indicated the balance was incorrect. The dependent variable, y, is the actual account balance as veried by the accountant. The independent variable, x, is the computer-generated account balance. mm a) Compute the least squares regression equation and interpret both of the coefcients. (4 marks) b) If the computer-generated account balance was 120, what would you expect the actual account balance as veried by the accountant to be? (2 marks) c) The computer-generated balance for Oliver Buxton is listed as 100 in the computer-generated account record. Calculate a 95% interval estimate for Mr Buxton's actual account balance. (4 marks)