Uploaded July 2023 | Updated September 2026, 6 hours ago
Causality means that there is a clear cause-effect relationship between two variables. Thus, there is causality if action A causes outcome B. A common mistake in the interpretation of statistics is that causality is inferred when a correlation is present. However, a correlation only indicates whether there is a connection.
► Tutorial Causality
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► E-BOOK
numiqo.com/statistics-book
► Online calculator
numiqo.com/statistics-calculator/hypothesis-test
Causality means that there is a clear cause-effect relationship between two variables. Thus, there is causality if action A causes outcome B. A common mistake in the interpretation of statistics is that causality is inferred when a correlation is present. However, a correlation only indicates whether there is a connection.
► Tutorial Causality
numiqo.com/tutorial/causality
► E-BOOK
numiqo.com/statistics-book
► Online calculator
numiqo.com/statistics-calculator/hypothesis-test
![Mann-Whitney U Test [in 60 sec.] #shorts](https://i.ytimg.com/vi/KfxEYEXXK_U/mqdefault.jpg "Mann-Whitney U Test [in 60 sec.] #shorts
Mann–Whitney U test (nonparametric test)
#statistics #datascience #dataanalysis #dataanalytics #research #thesis #stats #researcher #science #datatab #SPSS")
![Pearson correlation [in 60 sec.] #shorts](https://i.ytimg.com/vi/Kw_SVHZBVRA/mqdefault.jpg "Pearson correlation [in 60 sec.] #shorts
Pearson correlation, Pearson correlation coefficient
#statistics #datascience #dataanalysis #dataanalytics #research #thesis #stats #researcher #science #datatab #SPSS")
![Kaplan-Meier-Curve [Simply Explained]](https://i.ytimg.com/vi/L_ziqYhksG8/mqdefault.jpg "Kaplan-Meier-Curve [Simply Explained]
This video is about the Kaplan Meier Curve. Well go through what the Kaplan Meier Survival Curve is and how you can create it. The Kaplan Meier Curve is used to graphically represent the survival rate or survival function. Here, the time is plotted on the X-axis and the survival rate on the Y-axis.
Create Kaplan Meier Survival Curve online:
https://numiqo.com/statistics-calculator/survival-analysis
All Videos:
Survival Analysis Basics: https://youtu.be/Wo9RNcHM_bs
Kaplan-Meier-Curve: https://youtu.be/L_ziqYhksG8
Log-Rank Test: https://youtu.be/FhUkDRzHdHE
Cox Regression: https://youtu.be/DpZoRqqDgXA")
![Mann-Whitney U Test [Simply explained]](https://i.ytimg.com/vi/LcxB56PzylA/mqdefault.jpg "Mann-Whitney U Test [Simply explained]
What is a Mann-Whitney U Test? And how is it calculated? Thats what we will discuss in this video. A Mann-Whitney U test tests whether there is a difference between two independent samples.
An example: Is there a difference between the reaction time of women and men?
But the t-test for independent samples does the same!?! It also tests whether there is a difference between two independent samples. The Mann Whitney U Test is the non-parametric counterpart to the t-test for independent samples.
► Load sample data set
https://numiqo.com/statistics-calculator/hypothesis-test/mann-whitney-u-test?example=Mann_Whitney_U_Test
► Online Calculator Mann-Whitney U-test
https://numiqo.com/statistics-calculator/hypothesis-test/mann-whitney-u-test
► Mann-Whitney U-test Tutorial
https://numiqo.com/tutorial/mann-whitney-u-test
► E-BOOK
https://numiqo.com/statistics-book
00:00 What is a Mann-Whitney U Test?
00:23 Mann-Whitney U Test vs. t-test for independent samples
02:07 Hypotheses Mann-Whitney U Test
02:25 Example Mann-Whitney U Test
02:43 Calculate Mann-Whitney U Test with DATAtab
03:47 Calculate Mann-Whitney U Test by hand
08:03 Mann-Whitney U Test with tied ranks
#statistics #datascience #dataanalysis #dataanalytics #research #student #thesis #stats #researcher #science #datatab #SPSS #machinelearning")
