✳️ Regression analysis is a special case of Durbin-Watson model where the autocorrelation coefficient is zero. ✳️ The lag(s) is a main factor influencing the sampling distribution of Durbin-Watson test statistic. This slide displays how the central limit theorem occurs in the sampling distribution in the cases of different lags. ✅ Software has been released on google site, https://tinyurl.com/dwtestsoftware. ✅ source code included. ✅ Software running video: https://youtu.be/hDt1fxhrfaw 🔆 Seek cooperation!!!!