Suppose I have fitted an standard linear regression mode $Y=\beta_0+\beta_1X_1+\beta_2X_2+\beta_3X_3+\epsilon$. Based on the ACF plot or PACF plot of the residuals for this regreesion model, I found ...
I have a sample size of $21$ with $496$ observations.Can I presume an approximately normal distribution,and use a $t$-test to compare the difference in means, and difference in various financial ...
I am comparing two variables that are spatially autocorrelated. I want to do a paired t-test and the autocorrelation suggests that n-2 degrees of freedom cannot be used. Is it possible to perform ...