Jill Woodall believes that the average return on equity in the retail industry,μ, is less than 15%. What are the null (H. and alternative (Ha. hypotheses for her study?
A、 Ho:μ<0.15 versus Ha:μ≥0.15.
B、 Ho:μ≤0.15 versus Ha:μ>0.15.
C、 Ho:μ≥0.15 versus Ha:μ<0.15.
发布时间：2025-02-02 10:39:18
