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Jill Woodall believes that the average return on equity in the retail industry, µ, is less than 15%. What is null (H0) and alternative (Ha) hypothesis for her study? A. H0: µ ≥ 0.15 versus Ha: µ < 0.15. B. H0: µ < 0.15 versus Ha: µ = 0.15. C. H0: µ = 0.15 versus Ha: µ ≠ 0.15. |