欢迎来到天天文库
浏览记录
ID:22672402
大小:137.50 KB
页数:7页
时间:2018-10-30
《《计量经济学》期末考试试卷b》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、学院、系专业班级学号姓名······························密································封·······························线···································山东轻工业学院08/09学年第二学期《计量经济学》期末考试试卷(B卷)(本试卷共7页)适用班级:经管学院07级所有学生题号一二三四总分得分得分阅卷人一、单项选择题(本题共10小题,每小题2分,共20分)在每小题列出的四个备选项中只有一个是正确的,请将其代码填写在下面相应的答题
2、框中。错选、多选或未选均无分。题号12345678910答案1.在多元回归中,调整后的判定系数与判定系数的关系有( )A.C.D.关系不能确定2.根据判定系数与F统计量的关系可知,当=1时有( )A.F=-1B.F=0C.F=1D.F=∞3.DW检验法适用于检验( )A.异方差性B.序列相关C.多重共线性D.设定误差4.如果一个二元回归模型的OLS结果为R2=0.98,X1的t值=0.00001,X2的t值=0.0000008,则可能存在()问题。A.异方差B.自相关-7-学院、系专业班级学号姓名····················
3、··········密································封·······························线···································C.多重共线D.随机解释变量5.在多元线性回归模型中,若某个解释变量对其余解释变量的判定系数接近1,则表明模型中存在( )A.异方差性B.序列相关C.多重共线性D.拟合优度低6.容易产生自相关的数据是()A.横截面数据B.时间序列数据C.年度数据D.混合数据7.线性回归模型:中,检验时,所用的统计量为:()A.B.C.D.8.对于线性回
4、归模型:,检验随机误差项是否存在自相关的统计量是:()A.B.C.D.9.若回归模型中的随机误差项存在一阶自回归形式的序列相关,则估计模型参数应采用()A.普通最小二乘法B.加权最小二乘法C.广义差分法D.工具变量法10.在给定显著水平下,若DW统计量的下和上临界值分别为,则当时,可认为随机误差项()A.一阶正相关B.一阶负相关C.不存在序列相关D.不能判定存在序列相关与否-7-学院、系专业班级学号姓名······························密································封··············
5、·················线···································得分阅卷人二、分析简答题(40分)1.试述用杜宾——瓦特森d检验法检验一阶自相关的过程及前提条件?如果模型:中检验出存在一阶自相关,并得到自相关系数的估计值,你如何估计参数?(16分)-7-学院、系专业班级学号姓名······························密································封·······························线·························
6、··········2.某人用计量经济学研究消费和收入的关系,请写出其应用计量经济学研究该问题的详细步骤。(16分)3.试述不完全多重共线性的后果。(8分)-7-学院、系专业班级学号姓名······························密································封·······························线···································得分阅卷人三、分析题(本大题共2小题,每小题10分,共20分)1.依据美国1970~1983年的数据,得到下面的回
7、归结果:其中是国民生产总值(单位是亿美元),是货币供给(单位是百万美元),未知。(1)上述模型中的数据属于那种统计数据类型?(2分)(2)求出(2分)(3)假定1984年为552亿美元,预测该年平均?(3分)(4)货币学家认为:货币供给对有显著的正面影响,你如何检验这个假设?(3分)-7-学院、系专业班级学号姓名······························密································封·······························线····························
8、·······2.我们在实证研究中经常遇到违背古典模型假定的问题,
此文档下载收益归作者所有