多項(xiàng)選擇題線性回歸模型y=β01x+u中,隨機(jī)誤差產(chǎn)生的原因有()

A.模型設(shè)定誤差
B.對(duì)y的觀測(cè)誤差
C.對(duì)β0的估計(jì)錯(cuò)誤
D.對(duì)β1的估計(jì)錯(cuò)誤
E.各種細(xì)小的偶然誤差


您可能感興趣的試卷

你可能感興趣的試題

1.多項(xiàng)選擇題在對(duì)非平穩(wěn)時(shí)間序列進(jìn)行平穩(wěn)化時(shí),通常使用的平穩(wěn)化變換方法有:()

A.環(huán)比變換
B.對(duì)數(shù)變換
C.差分變換
D.移動(dòng)平均變換
E.對(duì)數(shù)差分變換

2.多項(xiàng)選擇題常用的綜合指數(shù)主要有()

A.馬埃指數(shù)
B.楊格指數(shù)
C.拉氏指數(shù)
D.費(fèi)暄指數(shù)
E.派氏指數(shù)

3.單項(xiàng)選擇題經(jīng)濟(jì)業(yè)績(jī)指數(shù)的分子是()

A.實(shí)際經(jīng)濟(jì)增長(zhǎng)率
B.名義經(jīng)濟(jì)增長(zhǎng)率
C.通貨膨脹率
D.失業(yè)率

5.單項(xiàng)選擇題由拉氏指數(shù)和派氏指數(shù)經(jīng)過(guò)簡(jiǎn)單幾何平均而得到的指數(shù)是()

A.楊格綜合指數(shù)
B.馬埃綜合指數(shù)
C.費(fèi)暄理想指數(shù)
D.平均指數(shù)

最新試題

Which of the following statements is not true?()

題型:?jiǎn)雾?xiàng)選擇題

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 ().

題型:?jiǎn)雾?xiàng)選擇題

If data are grouped into intervals and the number of items in each group is listed, this could be called a ()

題型:?jiǎn)雾?xiàng)選擇題

某廠某年職工勞動(dòng)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()

題型:?jiǎn)雾?xiàng)選擇題

A summary measure that is computed from a sample to describe a characteristic of the population is called()

題型:?jiǎn)雾?xiàng)選擇題

在組距數(shù)列中,下限就是()

題型:?jiǎn)雾?xiàng)選擇題

什么是季節(jié)變動(dòng)?研究它的意義何在?如何測(cè)定季節(jié)變動(dòng)?

題型:?jiǎn)柎痤}

對(duì)某班級(jí)學(xué)生的生活狀況進(jìn)行統(tǒng)計(jì)調(diào)查,下列標(biāo)志中屬于不變標(biāo)志的是()

題型:?jiǎn)雾?xiàng)選擇題

常用的長(zhǎng)期趨勢(shì)測(cè)定的方法有哪些?各有什么特點(diǎn)?

題型:?jiǎn)柎痤}

Which of the following is best to show the percentage of a total budget that is spent on each category of items?()

題型:?jiǎn)雾?xiàng)選擇題