Wilcoxon''s ranksum test, Advanced Statistics

Wilcoxon's ranksum test is the distribution free method or technique used as an alternative to the Student's t-test for assessing whether two populations have the same location. Given the sample of observations from each population, all observations are ranked as if they were from the single sample and the test statistic Wis the sum of ranks in the smaller group. Equivalent to Mann-Whitney test. The tables giving critical values of test statistic are available, and for the moderate and large sample sizes, a normal estimate can be used. 

Posted Date: 8/1/2012 1:54:05 AM | Location : United States







Related Discussions:- Wilcoxon''s ranksum test, Assignment Help, Ask Question on Wilcoxon''s ranksum test, Get Answer, Expert's Help, Wilcoxon''s ranksum test Discussions

Write discussion on Wilcoxon''s ranksum test
Your posts are moderated
Related Questions
Glim is the software package specifically suited for fitting the generalized linear models (the acronym stands for the Generalized Linear Interactive Modelling), including the log

Designs which permits two or more questions to be addressed in the investigation. The easiest factorial design is one in which each of the two treatments or interventions are p

Play-the-winner rule is a process sometimes considered in the clinical trials in which the response to treatment is positive (a success) or negative (a failure). One of two treatm

In an experiment, power is a function of 1. The number of variables being measured and the beta level 2. The effect size, internal validity and the beta level 3. The number of part

Conditional probability : The probability that an event occurs given the outcome of other event. Generally written, Pr(A|B). For instance, the probability of a person being color b

There is high level of fluctuation in a zigzag pattern in the time series for RESI1 which indicates that there is possibly negative autocorrelation present. Column C11 show

Demographic data: Age: continuous variable Gender: categorical variable with males coded 1, females coded 2. Relationship status: categorical variable 1 to 5. Rational

I do have a data of real gdp for each state and from 2000 to 2010 and I also have estimated population of illigel immigrants for each state from 2000 to 2010. In my thesis I am try


Ordination is the procedure of reducing the dimensionality (that is the number of variables) of multivariate data by deriving the small number of new variables which contain much