what is the gibbons statistic in r who is the gros statistic used for why grs statistic what is the statistic that determines the intercept of a regression grs statistic test what is the r statistic for grs what is gres statistic in r what is the gres statistic when is gres statistic used in r what is gris statistic where is grat statistic used which statistic tests for jointly zero intercepts when are grs intercepts jointly zero what is the gibbon statistic on a panel regression model? what is the grs statistic? what is the statistic grs in r which r statistic is commonly used to test that the estimated intercepts from a multivariate panel regression are jointly zero? what is the r statistic used for the grs what is grs how to compute gris statistic