Which of the Following Set of Hypotheses Is Used to Test

Multiple Choice

Which of the following set of hypotheses is used to test if the mean of the first population is smaller than the mean of the second population, using matched-paired sampling?

A) H₀: µ₁ - µ₂ ≤ 0, H_A: µ₁ - µ₂ > 0
B) H₀: µ₁ - µ₂ ≥ 0, H_A: µ₁ - µ₂ < 0
C) H₀: µ_D ≤ 0, H_A: µ_D > 0
D) H₀: µ_D ≥ 0, H_A: µ_D < 0