A 95% CI for p₁ − p₂ of (−0.02, 0.05) suggests
- Acheck_circle
No significant difference at α = 0.05
- B
p̂₁ = p̂₂
- C
Sample is biased
- D
Strong evidence p₁ > p₂
Explanation
CI includes 0 → fail to reject H₀: p₁ = p₂.
Confidence Intervals for the Difference of Two Proportions
AP Statistics· difficulty 4/5
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