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一元线性回归模型是中职数学教学中的重要内容,在一元线性回归模型中,最重要的就是回归系数的取值。但在以往的教学中,关于一元回归系数的确定只是通过公式计算,没有推导过程,学生并不明白其中的含义。文章通过引入实例,采用数形结合的方法帮助学生理解一元线性回归模型的基本理论和适用方法,并利用相关软件估计回归参数,同时进行显著性检验,并通过模型进行预测,进一步检验模型的可行性,以此为一元线性回归模型的教学改进提供一定的参考。 相似文献
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线性回归分析和检验在经济中的应用 总被引：1，自引：0，他引：1
林显宁 《廊坊师范学院学报(自然科学版)》2010,10(3)
针对于回归分析中的一元线性回归模型,多元线性回归模型的方法和原理进行系统的阐述和说明,利用统计软件并结合实例提供一种快捷而有效的解决线性回归模型中参数值,同时对回归模型进行检验,包括R检验,F检验和T检验. 相似文献
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《赤峰学院学报(自然科学版)》2017,(15)
一元线性回归主要研究两个变量之间的线性相关关系,本文主要论述了一元线性回归分析的基本理论,借助统计软件SPSS对一个简单的实例进行了分析,包括对实例的相关性分析、建模、对模型的显著性检验以及残差的分析,通过实例更进一步了解一元线性回归在具体问题中的应用. 相似文献
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运用一元线性回归分析的方法及其基础理论,借助SPSS统计软件建立了保险公司损失数额的线性回归模型及预测,最后对线性回归在保险行业中的应用做了相关总结. 相似文献
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该文考虑了多元模糊线性回归模型,先将一元模糊线性回归模型的参数估计的结果加以推广,接着给出了多元线性回归模型参数的h-最优线性相关估计。 相似文献
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鲁峰 《临沂师范学院学报》2005,27(6):65-69
入境旅游的入境人数和外汇收入是衡量一个国家或地区旅游经济实力和开放程度的指标,也是研究一个国家或地区入境旅游发展态势的重要指数．利用1978年-2004年的中国入境旅游统计资料来分析我国入境旅游市场的现状特点,运用数理统计模型,包括一元线性回归、多元线性回归、指数曲线和对数曲线四种回归方程来预测未来我国入境旅游的发展趋势,运用波士顿矩阵进行市场竞争态分析,提出未来我国入境旅游的开发战略和对策． 相似文献
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采用定性与定量分析相结合的方法,对A公司的税收筹划进行分析,通过建立一元线性回归模型,对这一方法的可行性进行分析,得出可以利用虚拟货币进行税收筹划、但需要对风险加以控制的相关结论.同时,从企业和政府两个角度看待这一新的发展方向,并分别向企业和税务机关提出了相关的建议. 相似文献
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基于1980～2012年间安徽省入境旅游人数和国际旅游外汇收入数据,通过计算相关系数、ADF检验、运用协整分析方法和格兰杰因果检验,对入境旅游人数和国际旅游外汇收入两者之间关系进行实证分析,并构建一元线性回归模型对国际旅游外汇收入进行预测。实证研究结果表明：安徽省入境旅游人数与国际旅游外汇收入之间高度正相关,两者不存在协整关系,但短期内入境旅游人数与国际旅游外汇收入之间存在双向因果关系,即入境旅游人数是国际旅游外汇收入增加的格兰杰原因,国际旅游外汇也是入境旅游人数增加的格兰杰原因。借助一元线性回归模型较好预测了国际旅游外汇收入,进而对旅游市场建设提出相应的政策建议。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献