Is there a unit root in this time series

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From the U.K. private sector housing starts (X) for the period 1948 to 1984, Terence Mills obtained the following regression results* :

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a. On the basis of these results, is the housing starts time series stationary or no stationary? Alternatively, is there a unit root in this time series? How do you know?

b. If you were to use the usual t test, is the observed t value statistically significant? On this basis, would you have concluded that this time series is stationary?

c. Now consider the following regression results:

Reference no: EM131248936

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