NO.PZ2018062016000123
问题如下：
Which of the following statements about one-side hypothesis test is most correct ?
选项：
A.
We reject the null only if the evidence indicates that the population parameter is smaller or larger than the critical value.
B.
Do not have Type I error.
C.
We reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.
解释：
C is correct. By definition, one-side hypothesis test also called one-tailed hypothesis test, which reject rule is reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.
想问问以下解题思路是否准确。one tailed —拒绝域看Ha的符号—Ha>X，则拒绝域在右边。如果Ha
