please answer all the questions specitically

A AnBbC

AaBbC AaBbCcD (a) The following model of number of dwellings approved for Victoria has been estimated using quarterly data. log(dwellingt) 1.634 + 1.526iog(popnt) O. 08581ratet (0.0439) (1.265) (0.261) where dwelling standS for the number Of new dwelling units and houses approved in Victoria, pppn represents the total population of the state, and irate is the commercial banks' standard variable interest rate for housing loans. The standard errors are in parentheses. Interpret the estimated intercept and slope coefficients of the model. (3 marks) (byyou have been asked by a car dealership located in Melbourne to model their monthly sales (SALES) as a function of how much is spent on advertising (ADV) and the average price of the cars (P) each month. You decide to estimate the following regression model using the historical database of the ealership over the period October 2009 - April 2020. SALESL = o + 1ADVt + 2ADVt-i + 4bt + (i) Given the sample regression function below, interpret the effects of past month's advertising on current month's sales. Conduct a test of overall significance of the model. The standard errors are in parentheses. STEst = 3253.67 + 179.35DVt + 6420.24ADVt-1 2010.62Pt 1 (452.01) (316.39) R2 74 n = 126 (183.27) (5 Marks) (ii) You also separately estimate the following exponential trend model for cars: sales. 'Interpret how the series SALES .is trending over timer log(SALE$tFS 6.73 U026t,