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A.第一類錯誤被稱為棄真錯誤
B.第一類錯誤被稱為納偽錯誤
C.第二類錯誤被稱為納偽錯誤
D.第二類錯誤是原假設(shè)不正確,但卻被接受的錯誤
E.第一類錯誤是原假設(shè)正確,但卻被拒絕的錯誤
A.完備性原則
B.同質(zhì)性原則
C.整齊可比性原則
D.互斥性原則
E.均衡分散性原則
最新試題
某廠某年職工勞動生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
A summary measure that is computed from a sample to describe a characteristic of the population is called()
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 ().
為什么在計算平均指標(biāo)的基礎(chǔ)上還有必要進(jìn)一步計算變異指標(biāo)?
最能反映離散程度的指標(biāo)是()
什么是季節(jié)變動?研究它的意義何在?如何測定季節(jié)變動?
Which of the following is not the goal of descriptive statistics?()
對全國各鐵路交通樞紐的貨運量、貨物種類等進(jìn)行調(diào)查,以了解全國鐵路貨運概況。這種調(diào)查屬于()
Which of the following statements is not true?()
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過四個車間,這四個車間的廢品率分別為1.5%、2.0%、2.0%和1.0%。該企業(yè)生產(chǎn)這種產(chǎn)品的平均廢品率是多少?