Variáveis Dummy: teoria e aplicações

Abstract

In a regression model it can happen that one or more explicative variables are qualitative. When this feature is present it can be characterized by a binary variable or dummy. For this reason the following work main goal is to study the regression on dummy variables, more specifically to revise the theory and cases in which they can be used, in order to elaborate, in a concise way, some simple and extensive material on the subject, so that it can help in researches and works. After the formalization, operational procedures to perform them were present with the help of computer resources, using the software – Statistica – version 5.1. Through this work we expect to furnish accessible theoretical material which provides better conditions for the theory application and more agility in the use of computer programs.