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2023-03-02 13:22Module 7-Practice Problems-Question 27-這道題的4個(gè)知識(shí)點(diǎn),分別在教材第幾頁上?
所屬:CFA Level I > Quantitative Methods 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個(gè)回答
Evian, CFA助教
2023-03-02 18:28
該回答已被題主采納
ヾ(?°?°?)??你好同學(xué),
2022-L1V1-443
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追問
1.答案中所說的第3小點(diǎn):the variance of the error term is the same for all observations, 在書第幾頁上有?書(2022-L1V1)P443第2點(diǎn),說的是:Homoskedasticity-The variance of the regression residuals is the same for all observations而不是error term?
2.答案中所說的第4小點(diǎn):the error term is normally distributed, 在書第幾頁上有?書(2022-L1V1)P443第4點(diǎn),說的是:Normality-The regression residuals are normally distributed 而不是error term?
3.本題A選項(xiàng),Assumption 1 The error term is uncorrelated across observations 在書第幾頁上有?書(2022-L1V1)P443第3點(diǎn),說的是:Independence-The regression residuals are uncorrelated across observations 而不是error term? -
追答
1.答案中所說的第3小點(diǎn):the variance of the error term is the same for all observations, 在書第幾頁上有?
【回復(fù)】在P475,是對(duì)回歸的假設(shè)做出的章節(jié)summary,如下截圖1
書(2022-L1V1)P443第2點(diǎn),說的是:Homoskedasticity-The variance of the regression residuals is the same for all observations而不是error term?
【回復(fù)】residual和error term是一個(gè)東西
2.答案中所說的第4小點(diǎn):the error term is normally distributed, 在書第幾頁上有?
書(2022-L1V1)P443第4點(diǎn),說的是:Normality-The regression residuals are normally distributed 而不是error term?
【回復(fù)】所有對(duì)于回歸假設(shè)詳細(xì)介紹在22原版書的P443,如下截圖2
3.本題A選項(xiàng),Assumption 1 The error term is uncorrelated across observations 在書第幾頁上有?書(2022-L1V1)P443第3點(diǎn),說的是:Independence-The regression residuals are uncorrelated across observations 而不是error term?
【回復(fù)】residual和error term是一個(gè)東西
