Statistics MCQs
Topic Notes: Statistics
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
1
Which measurement scale is the minimum requirement for the valid calculation of the Spearman rank correlation coefficient?
Answer:
Interval
Spearman's rank correlation is a non-parametric measure that relies on the ranks of data points rather than their actual values. Therefore, it is specifically designed for ordinal data. The provided answer key suggests interval data, which is a higher level of measurement than required.
2
What is the minimum level of measurement required for the Spearman Rank-Correlation test?
Answer:
Data should be of ordinal scale at least
The Spearman Rank-Correlation test assesses the monotonic relationship between two variables. It is a non-parametric measure that relies on the ranks of the data points rather than their raw values, making ordinal data the minimum requirement for its application.