Wilcoxon Rank-sum Test


Wilcoxon Rank-sum Test, also known as Mann-Whitney U test, is a non-parametric statistical hypothesis test used to compare two independent samples. It is used to determine whether two sets of observations are likely to derive from the same population, without assuming that the data are normally distributed. The test involves ranking all the observations from both samples together, then calculating the sum of the ranks for each sample. The test statistic is the smaller of the two sums, and its significance is determined by comparing it to a critical value from a table or using a p-value. The Wilcoxon Rank-sum Test is commonly used in data science and machine learning to compare the performance of different models or algorithms on different datasets.


Your Previous Searches
Random Picks

  • Machine Learning Techniques: Machine Learning Techniques refer to a set of algorithms and statistical models that enable computer systems to automatically improve their performance on a specific task by learning from data, without being explicitly programmed. These tec ... Read More >>
  • Personalized Recommendations: Personalized recommendations refer to the process of suggesting items, products, or services to users based on their past behavior, preferences, and interests. This process involves collecting and analyzing user data such as browsing histor ... Read More >>
  • Matrix-Vector Multiplication: Matrix-Vector Multiplication is a fundamental operation in linear algebra and is widely used in data science and artificial intelligence. It involves multiplying a matrix with a vector to produce another vector. The matrix is a rectangular ... Read More >>
Top News

Uber CEO Dara Khosrowshahi calls Elon Musk's vision for Tesla robotaxis 'pretty ...

Uber CEO Dara Khosrowshahi appeared on Friday's episode of the Hard Fork podcast, where he spoke about the future of the autonomous vehicle industry....

News Source: Business Insider on 2024-10-20

After Cynthia Erivo Called "Wicked" Fan Art "Offensive," Ariana Grande Has Offer...

"It's so much bigger than us."View Entire Post ›...

News Source: Buzzfeed on 2024-10-20

Google Research execs reveal how they use AI in their daily lives — and where ...

Google execs on the Research team told Business Insider their favorite uses of AI, like looking up products with Lens or translating pages....

News Source: Business Insider on 2024-10-20

Google DeepMind CEO Demis Hassabis explains what needs to happen to move from ch...

Demis Hassabis, the CEO of Google DeepMind, recently discussed what he thinks will be the next phase of AI after chatbots....

News Source: Business Insider on 2024-10-19

This is OpenAI CEO Sam Altman's favorite question about AGI...

Altman said artificial general intelligence will facilitate "scaffolding that exists between all of us."...

News Source: Business Insider on 2024-10-19