NO.PZ202106220100001802
问题如下：
What is the appropriate test statistic to use in this type of test?
选项：
解释：
The appropriate test statistic is ：
where Oij represents the observed frequency for the i and j group and Eij represents the expected frequency for the i and j group if the groupings are independent.
本题选用的检验量为卡方检验。
老师好 请问实际考试时会以这种问答题的形式进行提问吗
