余同学2018-03-01 13:32:30
原版书课后题 Reading 10,Q12 Because the value of the Durbin–Watson statistic is less than 2, we can say that the regression residuals are positively correlated. Because this statistic is fairly close to 2, however, we cannot say without a statistical test if the serial correlation is statistically significant。 r=0,DW=2,怎么是相关呢?
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金程教育顾老师2018-03-02 10:03:24
学员你好,所以是less than,而不是equal to啊
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金融慕播课贺老师2018-03-02 10:05:19
同学你好,这里DW等于1.8953,即使快到2,也不等于2。所以不能说他是不相关的。
原版书的解释就是这个意思,要加强对英语文本的阅读能力。
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