Prostaglandins Leukot Essent Fatty Acids. 2023 Oct 12:102591. doi: 10.1016/j.plefa.2023.102591. Online ahead of print.
Parametric tests such as t-tests require a normal distribution of data. However, the determination of normal distribution may not be conclusive while dealing with a small sample size. Non-parametric tests such as Wilcoxon tests may be used in this situation, as these tests do not require normal distribution.