免费涩情网站,鲁丝片一区二区三区免费,久久精品国产亚洲av高清经典,,免费高清中文字幕mv,免费网站看v片在线18禁无码

親愛的CFA學(xué)員:歡迎來到融躍教育CFA網(wǎng)! 距離 2025/8/20 CFA一級考期還有 天!
全國熱線:400-963-0708 網(wǎng)站地圖

首頁 > CFA一級 > 正文

CFA一級定量分析例題chi-square test of independence

發(fā)布時間:2025-06-26 15:04編輯:融躍教育CFA

CFA一級定量分析例題chi-square test of independence

Which of the following statements is correct regarding the chi-square test of independence?

A The test has a one-sided rejection region.

B The null hypothesis is that the two groups are dependent.

C If there are two categories, each with three levels or groups, there are six degrees of freedom.

答案:A

解析:Ais correct. The test statistic includes squared differences between the observed and expected values, so the test involves only one side,the right side. B is incorrect because the null hypothesis is that the groups are independent, and C is incorrect because with three levels of

groups for the two categorical variables, there are four degrees of freedom.

關(guān)聯(lián)考點(diǎn):Parametric and Non-Parametric Tests of Independence

易錯點(diǎn)分析:

通常,我們使用列聯(lián)表來檢驗兩個特征之間是否存在獨(dú)立性,例如在一個包含earnings growth和dividend yield的表中。原假設(shè)是這兩個特征是獨(dú)立的;檢驗的自由度由兩個特征的組數(shù)決定,計算公式為自由度df = (r-1)(c-1),其中r和c分別是兩個特征的組數(shù)。

cfa一級例題分析

添加老師領(lǐng)取學(xué)習(xí)資料
關(guān)鍵詞 : CFA一級真題
聲明:本文章為學(xué)習(xí)相關(guān)信息展示文章,非課程及服務(wù)內(nèi)容文章,產(chǎn)品及服務(wù)詳情可咨詢網(wǎng)站客服微信。文章轉(zhuǎn)載須注明來源,文章素材來源于網(wǎng)絡(luò),若侵權(quán)請與我們聯(lián)系,我們將及時處理。

上一篇:2026年cfa一級考什么內(nèi)容?詳細(xì)解析

下一篇:CFA一級經(jīng)濟(jì)學(xué)例題解析fiscal policy,market share

精品文章推薦

微信掃一掃

還沒有找到合適的CFA課程?趕快聯(lián)系學(xué)管老師,讓老師馬上聯(lián)系您! 試聽CFA培訓(xùn)課程 ,高通過省時省心!