问题
单项选择题
Which one of the following best characterizes the alternative hypothesis The alternative hypothesis is usually the:（）
A. hypothesis that is proved through statistical testing.
B. hoped -for outcome.
C. hypothesis to be proved through statistical testing.
答案
参考答案：B
解析：
The alternative hypothesis is typically the hypothesis that a researcher hopes to support after a statistical test is carried out. We can reject or fail to reject the null, not ’ prove’ a hypothesis.