A Researcher Wishes to Test for Differences in the Means

Multiple Choice

A researcher wishes to test for differences in the means of two populations, A and B. The correct statement of the statistical hypotheses is

A) H₀: μ_A > μ_B; H_a: μ_A < μ_B.
B) H₀: μ_A ` μ<sub>B</sub>; H<sub>a</sub>: μ<sub>A</sub> = μ<sub>B</sub>.
C) H<sub>0</sub>: μ<sub>A</sub> < μ<sub>B</sub>; H<sub>a</sub>: μ<sub>A</sub> > μ<sub>B</sub>.
D) H<sub>0</sub>: μ<sub>A</sub> = μ<sub>B</sub>; H<sub>a</sub>: μ<sub>A</sub> ` μ_B