non-deterministic testing
R Programming: Non-deterministic testing
Paired t-test: On many occasions, the two samples are not independent because they involve the same sampling unit. Measuring each subject or entity twice results in pairs of observations. In such situations, tests for paired data are used to perform hypothesis tests. This paired t-test relies on the assumption that the differences are normally distributed. The sign test is a non-parametric alternative to the paired t-test.