Regression Assumptions/Diagnostics in R
In this video, we explain regression assumptions such as normality of residuals, heteroskedasticity tests, and multicollinearity tests in R. We also discuss robust standard error and the remedy of multicollinearity.
00:00 Load Packages
1:40 Normality Tests (skewness, kurtosis)
4:55 Shapiro Wilk Test
5:56 QQ Plot
6:36 Heteroscedasticity (Breusch Pagan Test)
7:35 Breusch Godfrey Test
7:55 Remedy for Heteroscedasticity
9:22 Multicollinearity
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