The Alternative Hypothesis for a One-Tailed Independent-Groups T Test States $\mu$

Multiple Choice

The alternative hypothesis for a one-tailed independent-groups t test states that:

A) H₀: $\mu$ ₁ $\not =$$\mu$ ₂.
B) H₀: $\mu$ ₁ < $\mu$ ₂.
C) H_a: $\mu$ ₁ $\not=$$\mu$ ₂.
D) H_a: $\mu$ ₁ > $\mu$ ₂, or H_a: $\mu$ ₁ < $\mu$ ₂.