T Test Example Problems. The assumptions that should be met to perform a paired samples t test. The differences between the groups is likely to be due to chance.
Values in the t table are not actually listed by sample size but by degrees of freedom df. Independent samples t test problems 1. Two sample t test this example will use the same data as the previous example to test whether the difference between females and males average test scores is statistically significant.
The number of degrees of freedom for a problem involving the t distribution for sample size n is simply n 1 for a one sample mean problem.
This tutorial explains the following. An introduction to t tests. One sample t test tests if the given sample of observations could have been generated from a population with a specified mean. Values in the t table are not actually listed by sample size but by degrees of freedom df.
