(Answered) An analyst runs a time series analysis on an AR(3) model and arrives at a DW = 2.0. Upon discussing…

An analyst runs a time series analysis on an AR(3) model and arrives at a DW = 2.0. Upon discussing with her boss, the analyst concludes:
Group of answer choices
DW is not appropriate for an AR model
Negative Serial Correlation
Positive Serial Correlation
No Serial Correlation