please solve all and show work.

Question 1 4 points Save Answer Suppose the data generating process is y2xx a Suppose you rather data generated by the above DGP and run a linear regression with the following specification: y + where is the error term. Which of the following is a valid criticism of using ous for this DGP. The DGP is not linear in the parameters. We cannot run a hypothesis test on this linear model since it only has one regressor. The error term is unlikely to be o in expectation since there is an unaccounted for variable. d. None of these There is nothing wrong with this linear model specification b IC Question 3 4 points Save Ang A control variable None of these b. must be an important variable of interest. has no relationship with Y but controls for X . separates potential overlapping, confounding effects on Y from the error term in the regression of Yon x. d cannot be a qualitative variable e. Question 6 In the population regression model the error term represents 4 points Save Answer a None of these b mistakes the regression model makes in estimation the variable of interest we wish to learn about after estimation d the estimated residuals of the model factors that affect that are not included in the regressors