Question: Refer to Exercise 13 25 Form first differences in the data

Refer to Exercise 13.25. Form first differences in the data and then regress the y differences on the x differences.
a. Is there evidence in the residual plots of serial correlation?
b. Perform a Durbin– Watson test for serial correlation. Does the test confirm your ­observations from the residual plots?
In exercise

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  • CreatedNovember 21, 2015
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