A repeated measures ANOVA is used to determine whether or not there is a statistically significant difference between the means of three or more groups in which…
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The Wilcoxon Signed-Rank Test is the non-parametric version of the paired t-test. It is used to test whether or not there is a significant difference between two population…
This tutorial explains how to work with the geometric distribution in R using the following functions dgeom: returns the value of the geometric probability density…
A one-way ANOVA (“analysis of variance”) compares the means of three or more independent groups to determine if there is a statistically significant difference between…
The Wilcoxon Signed-Rank Test is the non-parametric version of the paired t-test. It is used to test whether or not there is a significant difference…
The Friedman Test is a non-parametric alternative to the Repeated Measures ANOVA. It is used to determine whether or not there is a statistically significant difference between the means…
A two-way ANOVA (“analysis of variance”) is used to determine whether or not there is a statistically significant difference between the means of three or more…
The multinomial distribution describes the probability of obtaining a specific number of counts for k different outcomes, when each outcome has a fixed probability of…
The negative binomial distribution describes the probability of experiencing a certain amount of failures before experiencing a certain amount of successes in a series of Bernoulli trials.…
The multinomial distribution describes the probability of obtaining a specific number of counts for k different outcomes, when each outcome has a fixed probability of…