T Test Chart. T distribution is the distribution of any random variable t. For two values number of degrees of freedom is n 1 n 2 2.
You can create a graph of t test results. It can be used when the population standard deviation σ is not known and the sample size is small n30. The t tests are extensively used in statistics to test for population means.
You can create a graph of t test results.
The results are significant if the t value is greater than the value in the cell. There are three types of t test. Social scientists use spss statistical package for the social sciences to conduct t tests. This table enables the t value from a t test to be converted to a statement about significance.