what is a likelihood ratio test is the likelihood ratio test used for a nested model? can the log likelihood ratio be used in each model? can u use the likelihood ratio test how to test the nested fit of a stratification variable can a nested model be used to evaluate a simulated stratification model? if a stratification variable is used what method can be applied what kind of model can we apply the likelihood ratio test on how to check likelihood ratio how do you check for an nested model how do we calculate loglikelihood in a stratification model can a stratification model be tested for the likelihood ratio test which model can i use to obtain loglikelihood can i test probability in the likelihood ratio test does total_data have a nested model? what is the probability ratio test which model is a nested model what is the likelihood ratio test what is the likelihood ratio in a log-likelihood test what kind of likelihood ratio test should i use to select a better model?