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您好,我想问一下DW检验,什么时候用比 critical value 大的方法,什么时候用 dl 和 du 方法?NO.PZ201709270100000403 问题如下 3. Baseon the regression output in Exhibit 1, there is evinof positive sericorrelation in the errors in: the linetrenmol but not the log-linetrenmol. both the linetrenmol anthe log-linetrenmol. C.neither the linetrenmol nor the log-linetrenmol. B is correct. The rbin–Watson statistic for the linetrenmol is 0.10 an for the log-linetrenmol, 0.08. Both of these values are below the criticvalue of 1.75. Therefore, we crejethe hypothesis of no positive sericorrelation in the regression errors in both the linetrenmol anthe log-linetrenmol. critic是 1.75,两个statistic都是小于critiacal,怎么判断?原假设是什么?
NO.PZ201709270100000403 问题如下 3. Baseon the regression output in Exhibit 1, there is evinof positive sericorrelation in the errors in: the linetrenmol but not the log-linetrenmol. both the linetrenmol anthe log-linetrenmol. C.neither the linetrenmol nor the log-linetrenmol. B is correct. The rbin–Watson statistic for the linetrenmol is 0.10 an for the log-linetrenmol, 0.08. Both of these values are below the criticvalue of 1.75. Therefore, we crejethe hypothesis of no positive sericorrelation in the regression errors in both the linetrenmol anthe log-linetrenmol. 如题
NO.PZ201709270100000403 问题如下 3. Baseon the regression output in Exhibit 1, there is evinof positive sericorrelation in the errors in: the linetrenmol but not the log-linetrenmol. both the linetrenmol anthe log-linetrenmol. C.neither the linetrenmol nor the log-linetrenmol. B is correct. The rbin–Watson statistic for the linetrenmol is 0.10 an for the log-linetrenmol, 0.08. Both of these values are below the criticvalue of 1.75. Therefore, we crejethe hypothesis of no positive sericorrelation in the regression errors in both the linetrenmol anthe log-linetrenmol. 1.75是还是?
NO.PZ201709270100000403 问题如下 3. Baseon the regression output in Exhibit 1, there is evinof positive sericorrelation in the errors in: the linetrenmol but not the log-linetrenmol. both the linetrenmol anthe log-linetrenmol. C.neither the linetrenmol nor the log-linetrenmol. B is correct. The rbin–Watson statistic for the linetrenmol is 0.10 an for the log-linetrenmol, 0.08. Both of these values are below the criticvalue of 1.75. Therefore, we crejethe hypothesis of no positive sericorrelation in the regression errors in both the linetrenmol anthe log-linetrenmol. 1.75是什么
3. Baseon the regression output in Exhibit 1, there is evinof positive sericorrelation in the errors in: the linetrenmol but not the log-linetrenmol. both the linetrenmol anthe log-linetrenmol. neither the linetrenmol nor the log-linetrenmol. B is correct. The rbin–Watson statistic for the linetrenmol is 0.10 an for the log-linetrenmol, 0.08. Both of these values are below the criticvalue of 1.75. Therefore, we crejethe hypothesis of no positive sericorrelation in the regression errors in both the linetrenmol anthe log-linetrenmol. 想问一下,老师视频里不是说过,时间序列模型得用t检验嘛,应该看AR(1)那一栏呀。为什么这道题目可以用到检验?那不是多元回归模型才使用的嘛?