开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

jvniki · 2022年12月05日

No.PZ2018062016000119 (选择题)

NO.PZ2018062016000119

问题如下:

which of the following statement is most likely correct?

选项:

A.

95% confidence level is that means we have 95% probably reject H0

B.

Test statistic is calculated with the population data

C.

Critical value is determined by the significantly level

解释:

C is correct. 95% confidence level is that means we have 95% probably not reject H0,test statistic is calculated with the sample data.

B,我听课说的就是检验的总体呀 咋不对了,C是啥意思啦

1 个答案
已采纳答案

星星_品职助教 · 2022年12月06日

同学你好,

1)B选项说的是检验统计量(Test statistic)是根据总体数据计算出来的,这个描述是错误的。检验统计量是根据抽出的样本的数据计算的;

2)假设检验针对的是总体,也就是原假设和备择假设检验的都是总体参数,而非样本统计量。这是其他的考点。

3)C选项意为关键值(critical value)是由significance level决定的,这个说法是正确的。例如正态分布下,significance level=5%的双尾检验即可以对应出关键值为±1.96.

  • 1

    回答
  • 0

    关注
  • 370

    浏览
相关问题

NO.PZ2018062016000119问题如下whiof the following statement is most likely correct?A.95% confinlevel means thwe have 95% probability to rejeH0B.Test statistic is calculatewith the population taC.Criticvalue is terminethe significanlevel C is correct. 95% confinlevel means thwe have 95% probability not to rejeH0. Test statistic is calculatewith the sample tconfinlevel的定义在哪里出现的?我们可以把confinlevel当作significant level的反面吗?

2023-12-20 21:09 1 · 回答

NO.PZ2018062016000119 问题如下 whiof the following statement is most likely correct? A.95% confinlevel is thmeans we have 95% probably rejeH0 B.Test statistic is calculatewith the population t C.Criticvalue is terminethe significantly level C is correct. 95% confinlevel is thmeans we have 95% probably not rejeH0,test statistic is calculatewith the sample t 老师上课的时候说criticvalue是由1、选择t分布还是z分布;2、⍺;3、单尾或双尾可以就像C那样片面地说criticvalue是由其中某一个因素决定的吗?

2022-08-30 18:41 1 · 回答

NO.PZ2018062016000119 问题如下 whiof the following statement is most likely correct? A.95% confinlevel is thmeans we have 95% probably rejeH0 B.Test statistic is calculatewith the population t C.Criticvalue is terminethe significantly level C is correct. 95% confinlevel is thmeans we have 95% probably not rejeH0,test statistic is calculatewith the sample t Criticvalue is terminethe significantly level 如何理解这句话

2022-07-13 10:00 1 · 回答

NO.PZ2018062016000119 问题如下 whiof the following statement is most likely correct? A.95% confinlevel is thmeans we have 95% probably rejeH0 B.Test statistic is calculatewith the population t C.Criticvalue is terminethe significantly level C is correct. 95% confinlevel is thmeans we have 95% probably not rejeH0,test statistic is calculatewith the sample t 检验统计量计算的公式,公式中分子不是用样本均值减去整体均值嘛,那是不是有用到整体的参数么

2022-05-19 21:20 1 · 回答