NO.PZ2023061301000007
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: μ ≤ 5 versus Ha: μ
> 5). A is incorrect because the null hypothesis is what the researcher wants to
reject; the “hoped for” or “suspected” condition is often set up as the alternative
hypothesis. B is incorrect because the null (not the alternative) hypothesis is
considered to be true unless the sample used to conduct the hypothesis test gives
convincing evidence that the null hypothesis is false.
b是什么意思 麻烦解释下
