Sample Size Calculator
Our free sample size calculator finds the minimum sample size for a given population or confidence level.
Descriptive Statistics
Shows users how to perform descriptive statistics on a complex dataset labeled "richness_abundance_farm" (N=90). This is a synthetic dataset, where invertebrate species richness and abundance values were obtained from two separate farms. Check out this community guide related to this workflow: https://community.julius.ai/t/guide-how-to-run-descriptive-statistics/4736.
Run a Chi Square Test
This workflow shows you how to run a chi-square test on a dataset. They are non-parametric tests that are used to determine if there is a significant association between two categorical variables.
Mann-Whitney U Test
This test is used to compare the medians of two independent groups when the assumption of normality is violated. You can follow along with the community post: https://community.julius.ai/t/guide-krusal-wallis-and-mann-whitney-u-tests-non-parametric/719
Wilcoxon Signed Rank Test
The wilcoxon signed rank test is a non-parametric alternative to the paired t-test. It compares two related groups. You can follow along with the community guide here: https://community.julius.ai/t/guide-running-a-wilcoxon-signed-rank-test-non-parametric-test/874.
Sample Size Calculator
Simple calculator for sample size.
Small Population Sample Size Calculator
Calculator for sample size with a small population.