Practice Rank Correlation (spearman's) (3.2) - Statistics - Mathematics III (PDE, Probability & Statistics)

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6 sample questions

Question 1.
What does Spearman's rank correlation measure?
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Think about what correlation means.
Question 2.
Is Spearman's correlation a parametric or non-parametric test?
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Remember, it does not assume normal distribution.
3Question 3.
What does Spearman's rank correlation coefficient assess?
- Strength of linear relation
- Strength of rank relation
- Independence of variables
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Focus on rank-based relationships.
4Question 4.
If $r_s = -0.85$ , what can be said about the relationship?
- True
- False
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Consider the strength and direction.
Question 5.
You have data for the exam scores of 10 students and their respective project evaluations rated on a scale of 1-10. Calculate the Spearman's correlation coefficient and interpret the result.
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Ensure accurate rankings and differences calculated.
Question 6.
Discuss how the method of calculating Spearman's correlation might differ from Pearson's correlation when dealing with skewed data.
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Consider the assumptions behind each correlation method.

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