Categorizing Exam Results: t-distribution

A population of large output data often follows a continuous natural distribution. It is often possible to sample smaller data and to predict the population parameters. The data taker for t – distribution is samples from a population which forms a normal distribution. In this study the population of students writing examinations is divided into smaller groups of less than 30 and t-distribution is used. The data were segregated and analyzed by using MS-Excel. The t-statistic obtained can be further used for the test of Hypothesis of true population mean or similarity of means for distribution range. The error estimate ‘E' is also evaluated for each category in this study. It was found that girls performed better than boys in the examination, in all categories. Also, there was no significant difference in the performance in the four sections evaluated.