Null Hypothesis for Comparing Two Proportions
A researcher wants to determine if the proportion of students who pass a standardized test is different for two teaching methods. Which of the following is the appropriate null hypothesis for this significance test?
A
H₀: p₁ < p₂
B
H₀: p₁ > p₂
C
H₀: p₁ = p₂
D
H₀: p₁ - p₂ ≠ 0
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