The statistical literature and folklore contain many methods for handling missing explanatory variable data in multiple linear regression. One such approach is to incorporate into the regression model ...

The use of dummy variables requires the imposition of additional constraints on the parameters of regression equations if determinate estimates are to be obtained. Among the possible constraints the ...

In this report, we explored factors related to whether people thought an increasing number of people of many different races, ethnic groups and nationalities made their country a better place to live.