1) good
2) good; what does this imply about the addition of other variables to each successive model?
3) correct; it is possible that the effect of omv can be observed from other variables that we considered
4) good use of plots and tables to show relationships between predictors and response. this case shows that significant coefficient estimates does not imply causations
1) good 2) good; what does this imply about the addition of other variables to each successive model? 3) correct; it is possible that the effect of omv can be observed from other variables that we considered 4) good use of plots and tables to show relationships between predictors and response. this case shows that significant coefficient estimates does not imply causations