NO.PZ2017092702000119
问题如下:
Which of the following statements about hypothesis testing is correct?
选项:
A.The null hypothesis is the condition a researcher hopes to support.
B.The alternative hypothesis is the proposition considered true without conclusive evidence to the contrary.
C.The alternative hypothesis exhausts all potential parameter values not accounted for by the null hypothesis.
解释:
C is correct.
Together, the null and alternative hypotheses account for all possible values of the parameter. Any possible values of the parameter not covered by the null must be covered by the alternative hypothesis (e.g., H0: θ ≤ 5 versus Ha: θ > 5).
老师视频明明说的是“不相信啥就H零。。。。想要拒绝他就H0。。。。” 原话!现在这个H0又变成真的了。。。。。晕死。。。。
c固然正确,。。。b很牵强!!!