Q7. Explain a distinction between an equation that is linear in the coefficients and one that is linear in variables. Examine whether log transformation of dependent and independent variables provides better estimates compared to regression analysis conducted using level-level regression model estimated in Q6. Furthermore, can you compare R-squared estimated results of level-level model with the estimated regression results of the double log regression model? If not, explain the rationale behind it. Present your estimated results using adouble log model in a table and discuss your findings. (15 marks)