Question: 4. Consider the time-series regression model Y = alt 33) + SY-1 + et a. You fit the model to the data by OLS and

4. Consider the time-series regression model Y = alt 33) + SY-1 + et a. You fit the model to the data by OLS and reject B = a. What do you conclude? b. Suppose that > a. You perform a unit root test. Would you be confident in the results of the test? Explain your answer. 4. Consider the time-series regression model Y = alt 33) + SY-1 + et a. You fit the model to the data by OLS and reject B = a. What do you conclude? b. Suppose that > a. You perform a unit root test. Would you be confident in the results of the test? Explain your

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