Test the hypotheses H0: There is no first-order autocorrelation vs. H1: There is positive first-order autocorrelation, given that: Durbin-Watson Statistic d = 1.12, n = 45, k = 5, and ? = 0.05
dL = 1.29 and dU = 1.78
The decision is made as follows:
If d < dL = 1.29, reject H0 and conclude that positive autocorrelation is present.
If 1.29 = dL ? d ? dU = 1.78, we say that the test is inconclusive.
If d ? dU = 1.78, we conclude that there is no evidence of positive autocorrelation.
Since d = 1.12, we reject H0 and conclude that positive autocorrelation is present.
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