• The t-test is an inferential statistic used to determine if there is a statistically significant difference between the means of two variables.

  • A t-test is a test used to test hypotheses in statistics.
  • To calculate the t-test, three basic data values are required, including the difference between the means from each data set, the standard deviation of each group, and the number of data values.
  • T-tests can be dependent or independent.