🎲
Hypothesis Testing
★★★★☆Undergraduate
📖Definition
A statistical method to test claims about a population using sample data.
📐Formulas
H₀: μ = μ₀, H₁: μ ≠ μ₀
Null and alternative hypotheses
Z = \frac\barX - μ₀σ / √n
Z test statistic
t = \frac\barX - μ₀s / √n
t test statistic
✏️Examples
예제 1★★★★☆
Test μ=50 with sample mean 52, SD 10, n=25 (α=0.05).
⚡Applications
Pharmaceuticals
Clinical trial efficacy
Quality Control
Process anomaly detection
Social Science
Research validation
🔗Related Documents
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