SciPy - Statistical Tests
Which of the following null hypotheses is tested by the two-sample Kolmogorov-Smirnov test?
Which of the following null hypotheses is tested by the two-sample Kolmogorov-Smirnov test?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify KS test null hypothesis
The two-sample KS test checks if two samples come from the same continuous distribution.Step 2: Differentiate from other tests
Tests for means or variances are different (e.g., t-test, F-test), KS test focuses on distribution equality.Final Answer:
Both samples come from the same continuous distribution -> Option AQuick Check:
KS null hypothesis = same distribution [OK]
Quick Trick: KS test null is about distribution equality, not mean or variance [OK]
Common Mistakes:
MISTAKES- Assuming KS tests mean equality
- Confusing KS with variance tests
- Thinking KS tests median equality
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