Question: The following regression is obtained by ordinary least squares, using 21 observations. (Estimated asymptotic standard errors are shown in parentheses.) yt = 1.3 + 0.97yt1

The following regression is obtained by ordinary least squares, using 21 observations. (Estimated asymptotic standard errors are shown in parentheses.) yt = 1.3 + 0.97yt−1 + 2.31xt , D − W = 1.21. (0.3) (0.18) (1.04) Test for the presence of autocorrelation in the disturbances.

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