中国农大网络教育生物统计学在线作业 B(满分)

中国农大网络教育生物统计学在线作业 B(满分)中国农大网络教育生物统计学在线作业 B(满分) 1. 在双侧检验中，如果实际的t值绝对值小于则( )。接受原假设接受备则假设拒绝原假设拒绝备择假设解答: 接受原假设 2. α错误即弃真错误是指( )。否定了真实的原假设接受了不真实的原假设否定了不真实的假设接受了真实的原假设解答: 否定了真实的原假设 3. 对一批进口商品的质量进行假设检验，在显著性水平为0.01时，H被拒绝，如果使用了0 0.05的显著性水平则H( )。 0 一定会被拒绝一定会被接受必...

中国农大网络教育生物统计学在线作业 B(满分) 1. 在双侧检验中，如果实际的t值绝对值小于则( )。接受原假设接受备则假设拒绝原假设拒绝备择假设解答: 接受原假设 2. α错误即弃真错误是指( )。否定了真实的原假设接受了不真实的原假设否定了不真实的假设接受了真实的原假设解答: 否定了真实的原假设 3. 对一批进口商品的质量进行假设检验，在显著性水平为0.01时，H被拒绝，如果使用了0 0.05的显著性水平则H( )。 0 一定会被拒绝一定会被接受必须重新假设检验可能会被拒绝解答: 一定会被拒绝 4. 做假设检验时犯一类错误和犯二类错误的关系是( )。同步增减不确定互相独立此消彼长解答: 此消彼长 5. 相关分析主要用于研究( )。 to West rear, to County Shen Liqun report guerrillas breakout Hou of action situation, boat via Zhejiang wuxing daughter town Shi, six people has a NI surname "spies" (enemy) midway tuogu landing tipsters, away from small town three in Xu, was day Elves Li Taishan Department captured, five people all killed, broken corpse sank Yu River in the. On January 18, 1943, when the Japanese army militiamen arrested 53 people in Wuzhen, transferred to the tomb of the former Japanese military police command (in the "Tai" Jiang Yuan), the 28th in Shenyang North of jade bang massacred them. Hu Maosheng knife wounds woke up in the middle of them, crawling out from the dead, in the tomb of Gao Changhai residents, saved by bing. Such as Hu Maosheng, Gao Changhai is a witness to this tragedy. (B) in memory of "massacre" Xu Youyong yan tomb is the copper law. Copper originally was called Luo yan Tomb, because Eastern Han dynasty distinguished prose poems my father yan Tan bogey was buried in the town's water. Has a long history here, cultural atmosphere, and there are many old houses, and left many people with lofty ideals. Business flourished here, is the hub of four townships of agricultural and sideline products, wine culture has a long history. The outskirts of the town has left, "Huang Chi", originally Yue water hides 变量之间的数量关系研究变量之间相互关系的密切程度变量之间的变动关系研究变量之间的因果关系解答: 研究变量之间相互关系的密切程度 6. 相关系数的取值范围是( )。 -1 单元，各班学生人数是( )。变量指标变量值指标值解答: 变量 12. 某班四名学生金融考试成绩分别为70分、80分、86分和95分，这四个数字是( )。指标标志指标值变量值解答: 变量值 13. 工业企业的职工人数和职工工资( )。均为连续型变量均为离散型变量前者是连续型变量，后者是离散型变量前者是离散型变量，后者是连续型变量解答: 前者是离散型变量，后者是连续型变量 to West rear, to County Shen Liqun report guerrillas breakout Hou of action situation, boat via Zhejiang wuxing daughter town Shi, six people has a NI surname "spies" (enemy) midway tuogu landing tipsters, away from small town three in Xu, was day Elves Li Taishan Department captured, five people all killed, broken corpse sank Yu River in the. On January 18, 1943, when the Japanese army militiamen arrested 53 people in Wuzhen, transferred to the tomb of the former Japanese military police command (in the "Tai" Jiang Yuan), the 28th in Shenyang North of jade bang massacred them. Hu Maosheng knife wounds woke up in the middle of them, crawling out from the dead, in the tomb of Gao Changhai residents, saved by bing. Such as Hu Maosheng, Gao Changhai is a witness to this tragedy. (B) in memory of "massacre" Xu Youyong yan tomb is the copper law. Copper originally was called Luo yan Tomb, because Eastern Han dynasty distinguished prose poems my father yan Tan bogey was buried in the town's water. Has a long history here, cultural atmosphere, and there are many old houses, and left many people with lofty ideals. Business flourished here, is the hub of four townships of agricultural and sideline products, wine culture has a long history. The outskirts of the town has left, "Huang Chi", originally Yue water hides 14. 计算一个变量数列的平均数时，在下列哪种情况下，加权算术平均数等于简单算术平均数( )。各组次数不相等各组次数递增各组次数相等各组次数大致相等解答: 各组次数相等 15. 一组数据呈高度偏态时，哪一种平均数不能代表数据的集中趋势?( )。众数算术平均数中位数几何平均数解答: 算术平均数 16. 总体方差是数据中各变量值与其算术平均数的( )。离均差绝对值的平均数离均差平均数的绝对值离均差平方的平均数离均差平均数的平方解答: 离均差平方的平均数 17. 当一组数据属于左偏分布时，则( )。众数的数值较小，平均数的数值较大众数在左边、平均数在右边平均数、中位数与众数是合而为一的众数在右边、平均数在左边解答: 众数在右边、平均数在左边 18. 常用的配对设计不包括( )。亲缘配对 to West rear, to County Shen Liqun report guerrillas breakout Hou of action situation, boat via Zhejiang wuxing daughter town Shi, six people has a NI surname "spies" (enemy) midway tuogu landing tipsters, away from small town three in Xu, was day Elves Li Taishan Department captured, five people all killed, broken corpse sank Yu River in the. On January 18, 1943, when the Japanese army militiamen arrested 53 people in Wuzhen, transferred to the tomb of the former Japanese military police command (in the "Tai" Jiang Yuan), the 28th in Shenyang North of jade bang massacred them. Hu Maosheng knife wounds woke up in the middle of them, crawling out from the dead, in the tomb of Gao Changhai residents, saved by bing. Such as Hu Maosheng, Gao Changhai is a witness to this tragedy. (B) in memory of "massacre" Xu Youyong yan tomb is the copper law. Copper originally was called Luo yan Tomb, because Eastern Han dynasty distinguished prose poems my father yan Tan bogey was buried in the town's water. Has a long history here, cultural atmosphere, and there are many old houses, and left many people with lofty ideals. Business flourished here, is the hub of four townships of agricultural and sideline products, wine culture has a long history. The outskirts of the town has left, "Huang Chi", originally Yue water hides 条件配对自身配对重复配对解答: 重复配对 19. 若要证明两变量之间线性相关程度是高的，则计算出的相关系数应接近于( )。 +1 0.5 0 +1或者-1 解答: +1或者-1 20. 回归系数和相关系数的符号是一致的，其符号均可用来判断现象( )。线性相关还是非线性相关完全相关还是不完全相关正相关还是负相关单相关还是复相关解答: 正相关还是负相关 to West rear, to County Shen Liqun report guerrillas breakout Hou of action situation, boat via Zhejiang wuxing daughter town Shi, six people has a NI surname "spies" (enemy) midway tuogu landing tipsters, away from small town three in Xu, was day Elves Li Taishan Department captured, five people all killed, broken corpse sank Yu River in the. On January 18, 1943, when the Japanese army militiamen arrested 53 people in Wuzhen, transferred to the tomb of the former Japanese military police command (in the "Tai" Jiang Yuan), the 28th in Shenyang North of jade bang massacred them. Hu Maosheng knife wounds woke up in the middle of them, crawling out from the dead, in the tomb of Gao Changhai residents, saved by bing. Such as Hu Maosheng, Gao Changhai is a witness to this tragedy. (B) in memory of "massacre" Xu Youyong yan tomb is the copper law. Copper originally was called Luo yan Tomb, because Eastern Han dynasty distinguished prose poems my father yan Tan bogey was buried in the town's water. Has a long history here, cultural atmosphere, and there are many old houses, and left many people with lofty ideals. Business flourished here, is the hub of four townships of agricultural and sideline products, wine culture has a long history. The outskirts of the town has left, "Huang Chi", originally Yue water hides

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