A.右側(cè)檢驗
B.左側(cè)檢驗
C.雙側(cè)檢驗
D.上側(cè)檢驗
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A.概率
B.事件
C.實驗
D.樣本空間
A.中位數(shù)檢驗是一種兩獨立樣本的非參數(shù)檢驗方法
B.中位數(shù)檢驗是一種多獨立樣本的非參數(shù)檢驗方法
C.中位數(shù)檢驗使用的統(tǒng)計量是卡方統(tǒng)計量
D.中位數(shù)檢驗中要求各組樣本中的個案相同
E.中位數(shù)檢驗中要計算各變量值的秩
最新試題
A cumulative frequency distribution would provide().
某班的學(xué)習(xí)按考試成績分為60分以下,60-70,70-80,80-90,90-100,這種分組()
一個地區(qū)一定時期的商品零售額屬于()
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
品合格率指標(biāo)是()
Which of the following is not the goal of descriptive statistics?()
If the individual class frequency is divided by the total frequency, the result is the ().
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a ().
One rule that must always be followed in constructing frequency distributions is that ().
以2000年a0為最初水平,2016年an為最末水平,計算鋼產(chǎn)量的年平均發(fā)展速度時,須開()