请问一下统计的问题 A.formulate null and alternative hypotheses consistent with determining whether the poppulation mean value of analyst A's forcast errors(u1) are larger than ananyst B's(u2) answer:Ho:u1-u2<=0 versus Ha:u1-u2>0 答案可以写成这样吗?》》》 Ho:u1-u2>0 versus Ha:u1-u2<=0 |