皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【多选题】
在一个总体均值的假设检验中,确定检验统计量,需要考虑的主要因素有( )。
A.
总体方差已知还是未知
B.
双侧检验还是单侧检验
C.
显著性水平的大小
D.
用于进行检验的是大样本还是小样本
E.
总体和样本的方差是否相等
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】When I got backhome I saw a message pinned to the door , “Sorry to miss you ; will call later . ”
A.
. read 
B.
. reads 
C.
. to read 
D.
. reading
【单选题】______, are you Jane? [     ]
A.
Excuse
B.
Sorry
C.
Excuse me
D.
How are you
【单选题】听力原文:Woman: Excuse me, how much is this red skirt? Man: 45 dollars. Woman: I'm afraid it's too expensive for me. How about the blue one? Man: It's 10 dollars less than the red one. But if you take bot...
A.
$ 55
B.
$ 80
C.
$ 75
D.
$ 64
【判断题】When I saw him, he has finished the letter .
A.
正确
B.
错误
【单选题】条件表达式创建用的语言是:
A.
If Else
B.
Do While
C.
Do Until
D.
Else If
【单选题】Today, when I think of my friend, I remember the way her face ________ when she saw the picture of a handsome fellow. [     ]
A.
cheered up
B.
turned up
C.
stood up
D.
lit up
【简答题】My roommate is always very optimistic,and that ’ s why he still_____his good humor after all the setbacks.(manipulate contradict paradox perspective defy suspend tackle retain derive ...
【简答题】Many children are addicted to computers,so they often_____their parents and play the computer s for hours every day.(manipulate contradict paradox perspective defy suspend tackle ret...
【简答题】The organization has been working with local authorities as well as regional government and officials to_____the problem of climate change.(manipulate contradict paradox perspective defy sus...
【简答题】The new teaching program was _____last semester because the teachers in the department protested its demand for more intense work.(manipulate contradict paradox perspective defy suspend ta...
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题