METHODS OF DATA ANALYSIS
STATISTICAL TOOLS AND TECHNIQUES OF DATA ANALYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mann Whitney U
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Wilcoxon T test
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Spearman’s Rho
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Chi Squared
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Detailed explanation-1: -The Wilcoxon test, which can refer to either the rank sum test or the signed rank test version, is a nonparametric statistical test that compares two paired groups.
Detailed explanation-2: -The Wilcoxon signed rank test is a non-paracontinuous-level test, in contrast to the dependent samples t-tests. Whereas the dependent samples t-test tests whether the average difference between two observations is 0, the Wilcoxon test tests whether the difference between two observations has a mean signed rank of 0.
Detailed explanation-3: -The Wilcoxon signed-rank test is a non-parametric statistical hypothesis test used either to test the location of a population based on a sample of data, or to compare the locations of two populations using two matched samples. The one-sample version serves a purpose similar to that of the one-sample Student’s t-test.
Detailed explanation-4: -The Mann-Whitney test is the non-parametric equivalent of the independent samples t-test (it is sometimes-wrongly-called a ‘non-parametric t-test’).