The `` t '' - distribution plays a role in a number of widely used statistical analyses , including the Student 's `` t '' - test for assessing the statistical significance of the difference between two sample means , the construction of confidence intervals for the difference between two population means , and in linear regression analysis .
The `` t '' - distribution plays a role in many widely used statistical analyses , including the Student 's `` t '' - test for assessing the statistical significance of the difference between two sample means , the construction of confidence intervals for the difference between two population means , and in linear regression analysis .