Mann-Whitney test


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Mann-Whitney test

(ˈmænˈwɪtnɪ)
n
(Statistics) a statistical test of the difference between the distributions of data collected in two experimental conditions applied to unmatched groups of subjects but comparing the distributions of the ranks of the scores. Also called: Wilcoxon Mann-Whitney test
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Comparison between two groups was determined by the Mann-Whitney test, t-test, or chi-squared test.
Parametric data were tested by Student's t-test, while nonparametric data were tested by Mann-Whitney test. The percentage of females that released oocytes was analyzed by the test for difference between two proportions.
Mann-Whitney Test conducted between group 1 and group 2 exhibited statistically significant difference between two groups (U= 120; p = 0.001) in favour of group 1 (Mean rank = 41.50) compared to group 2 (Mean rank = 19.50) with more number of successful variables (Table 1).
Mann-Whitney test and Fisher's exact test were applied for data analysis.
Differences in medians between the groups were analyzed using the Mann-Whitney test for non-normally distributed continuous or ordinal variables.
Post hoc analysis test for Kruskal Wallis test was Mann-Whitney test. Mann-Whitney test were conducted between the low and intermediate Hasford score, low and high Hasford score and also intermediate and high Hasford score.
When the effect of irrigant regardless of the sealer was analyzed, saline had the highest immediate leakage rate that was significantly higher than that with DMSO (p=0.032; Mann-Whitney test).
The Fisher's exact test and Mann-Whitney test were used for comparative studies.
Intragroup and intergroup analyses were done using Wilcoxon signed ranked test and Mann-Whitney Test respectively.
Since histograms showed that the FACT-G data was not normally distributed, a nonparametric (Mann-Whitney test) statistical test was used to evaluate pairwise differences between sexes (Female, N=50; Male, N=29).
In Figure 3, age in both groups was presented and Mann-Whitney test resulted in no statistically important difference between group I and group II.