發(fā)布時(shí)間:2023-07-15 15:02編輯:融躍教育CFA
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.
(數(shù)量 Hypothesis Testing)
通常是根據(jù)一個(gè)列聯(lián)表來檢驗(yàn)表中的兩個(gè)特征是否獨(dú)立,比如這個(gè)表中的earnings growth和dividend yield是否獨(dú)立;原假設(shè)是兩個(gè)特征獨(dú)立(independent); 自由度是(r-1)(c-1),r和c分別是兩個(gè)特征的組數(shù),A中強(qiáng)調(diào)one-sided,意思是拒絕域都在一邊。
下一篇:CFA一級易錯(cuò)題:A product is part of a price index based on a fixed consumption bask
精品文章推薦
距 2025/5/14 CFA考期 還有
打開微信掃一掃
添加CFA授課講師
課程咨詢熱線
400-963-0708
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(shí)省心!