Mann-Whitney U Test: Theory and Tutorial in Excel

The video tutorial explains the differences between parametric and nonparametric tests, focusing on when to use nonparametric tests like the Mann Whitney U test. It provides a detailed guide on performing the Mann Whitney U test using Excel, including calculating ranks and U statistics, and interpreting the results to determine statistical significance.

What are parametric tests and why are they commonly used in science courses?

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What is the significance of normal distribution in parametric tests?

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What should you do if your data does not follow a normal distribution?

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Explain the benefits of using nonparametric tests.

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What is the Wilcoxon rank sum test and when is it used?

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How do you perform a Mann Whitney U test?

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What is the importance of calculating R1 and R2 in the Mann Whitney U test?

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Discuss the process of ranking data in the Mann Whitney U test.

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What is the role of critical values in hypothesis testing?

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How do you determine if the difference between two groups is statistically significant?

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