Uma aplicação do teste T de Student para grupo de alunos antes e depois do PIBID.

Abstract

With the implementation of PIBID in schools in the state public network in the municipalities of Cuité and Picuí, emerged in the school context a form of cooperation and exchange of experience between the University and the reality of High School in the region covered by the project, in special in Mathematics content. However, evaluating the perceived quality process with the implementation of PIBID involves a set of factors or variables that do not always can be measured. You can, however, use some statistical tests to have a idea of ​​quantitative behavior of a particular variable to carry out a analysis of perceived quality improvement as a function of pass and disapproval rates. For this purpose, Student's t-test or just "t-test" is a hypothesis test that uses statistical concepts to reject or not a null hypothesis when the test statistic follows a Student t distribution. This assumption was used due to the test statistic have followed a normal distribution, where this assumption was proven through the test of Shapiro-Wilk normality and graphical analysis of the Q-Q plot, associated with this assumption there is the fact of ignorance of the population variance, with this adjustment, the statistic of test went on to follow a Student t distribution. Students were evaluated before and after the implementation of PIBID for the average parameter. Descriptive statistics and tests of normality (Shapiro-Wilk) were used for all variables. Student's t tests for Paired data were used to investigate the impact of project implementation. There were no significant improvements (p-value less than or equal to 0.05) for the means when comparing the two years for the different groups evaluated.