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The Wilcoxon signed-rank test is a non-parametric rank test for statistical hypothesis testing 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. [1] The one-sample version serves a purpose similar to that of the one-sample Student's t -test. [2]
Frank Wilcoxon was born to American parents on 2 September 1892 in County Cork, Ireland. [2] He grew up in Catskill, New York, but received part of his education in England. In 1917, he graduated from Pennsylvania Military College with a B.Sc. After the First World War he entered graduate studies, first at Rutgers University, where he was ...
Mann–Whitney test (also called the Mann–Whitney–Wilcoxon (MWW/MWU), Wilcoxon rank-sum test, or Wilcoxon–Mann–Whitney test) is a nonparametric statistical test of the null hypothesis that, for randomly selected values X and Y from two populations, the probability of X being greater than Y is equal to the probability of Y being greater than X.
GF method. The GF method, sometimes referred to as FG method, is a classical mechanical method introduced by Edgar Bright Wilson to obtain certain internal coordinates for a vibrating semi-rigid molecule, the so-called normal coordinates Qk. Normal coordinates decouple the classical vibrational motions of the molecule and thus give an easy ...
Modal testing is the form of vibration testing of an object whereby the natural (modal) frequencies, modal masses, modal damping ratios and mode shapes of the object under test are determined. A modal test consists of an acquisition phase and an analysis phase. The complete process is often referred to as a Modal Analysis or Experimental Modal ...
In statistics, the Brunner Munzel test[1][2][3] (also called the generalized Wilcoxon test) is a nonparametric test of the null hypothesis that, for randomly selected values X and Y from two populations, the probability of X being greater than Y is equal to the probability of Y being greater than X. It is thus highly similar to the well-known ...
Molecular vibration. A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged. The typical vibrational frequencies range from less than 10 13 Hz to approximately 10 14 Hz, corresponding to wavenumbers of approximately 300 to 3000 cm −1 and ...
Wilcoxon is a surname, and may refer to: Charles Wilcoxon, drum educator. Henry Wilcoxon, an actor. Frank Wilcoxon, chemist and statistician, inventor of two non-parametric tests for statistical significance: The Wilcoxon signed-rank test (also known as the Wilcoxon T test) The Wilcoxon rank-sum test (also known as the Mann–Whitney U test).