can stata be paired with a pce model if standard error is correct? can manner test be run on fe why is the hausman test necessary does hausman test work with fixed effect does heteroskedasticity show in stata why hausman test in stata is not robust is the heteroskedasticity test in stata valid why hausman test is not required with an uncorrected standard error what test is done to test breusch pagan which stata test is used for robustness which test would show heteroskedasticity in a pcse model why is it necessary to run a homoskedastic fe is hausman test a standard error how to get heteroskedasticity tested in stata when should hausman test be used can hausman test be used with uncorrected standard error model when to use panel corrected standard error does the hausman test work with ppe what type of model does hausman test on can the hausman test be used with a pcse test model