NO.PZ202306130100003001
问题如下：
The variable SHIFT is best described as:
选项：
A.an indicator variable.
a dependent variable.
a continuous variable.
解释：
A is correct. SHIFT is an indicator or dummy variable because it takes on only
the values 0 and 1.
老师好， 发散问一个问题 -
T-test 可以 test indicator vailable的吗？
given T-test's underlying probability distribution is t-distribution which is continues? indicator variable 是否 用 hypothesis testing with underlying distribution is discrete 更对？
OR 我审错题了？我看见题目里提了t-stat， 所以assume 题目用了t-test。
谢谢！
