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What is the definition of Friedman test? 


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The Friedman test is a nonparametric method used to analyze data from a randomized complete block design. It is a robust alternative to parametric methods and is widely applied in various fields such as agriculture, biology, business, education, and medicine. The test is used to determine if there are treatment effects present in the data. After rejecting the null hypothesis of no treatment effects, post-hoc pairwise comparisons are conducted to identify where the differences occur. As the number of groups increases, the number of required comparisons also increases, which can lead to an increased type I error. Several studies propose methods to address this issue, including suggesting expressions that facilitate the plotting of the Friedman test and deriving the sampling distribution of the suggested expression. These methods aim to reduce the number of required tests, maintain the type I error close to the nominal value, and provide a better understanding of where the treatment effects occur .

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The paper provides the definition of the Friedman test as a statistical test used to assess the independence of repeated experiments resulting in ranks.
The paper provides a definition of the Friedman Test as a statistical test used to analyze tables of ranks, such as those from a wine contest.
The definition of the Friedman test is not explicitly mentioned in the provided paper.
The paper provides a definition of the Friedman test as a nonparametric method used to analyze data from a randomized complete block design.

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What is Mann-Kendell test?4 answersThe Mann-Kendall test is not mentioned in any of the provided abstracts.

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