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Brian Ci believes that the average return on equity in the airline industry, µ, is less than 5%. What are the appropriate null (H0) and alternative (Ha) hypotheses to test this belief? A. H0: µ < 0.05 versus Ha: µ ≥ 0.05. B. H0: µ ≥ 0.05 versus Ha: µ < 0.05. C. H0: µ < 0.05 versus Ha: µ > 0.05. |