做假设检验下结论时,是否拒绝零假设决定于以下各项,其中错误的一项是() A.被研究的 发布时间:2017-05-27 13:48 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 做假设检验下结论时,是否拒绝零假设决定于以下各项,其中错误的一项是()A.被研究的事物有无本质差异B.选用检验水准的高低C.抽样误差的大小D.样本含量的多少E.系统误差的大小
题型:单项选择题 A1/A2型题 阅读理解。 One day a rich man met Sam. The rich man asked,"I hear you're very clever and nothing is difficult toyou. Can you tell me why you are so clever?" Sam answered with a smile,"Oh, I am not clever. Instead, you are too foolish." The rich man became very angry. Sam said,"Please don't be angry. If you don't believe me,now let me ask you a question. If you put together one group of sheep,how many groups of sheep do you have?" "Why! That's an easy question. One and one is two, anybody knows that. I have two groups of sheep." Sam laughed and said,"you are wrong. When two groups of sheep is put together, there is still one group.That's the easiest question in the world." 1. One day met Sam. [ ]A. a rich man B. a poor man C. an old man 2. The rich man became angry because . [ ]A. Sam was foolishB. Sam said he was foolishC. Sam was Clever D. Sam wasn't Clever 3. Sam asked the rich man questions. [ ]A. an easyB. a difficultC. an interesting D. a good 4. Two groups of sheep put together is .[ ]A. one group B. two groups C. many groups D. many sheep 5. Sam is than the rich man. [ ]A. more foolish B. richer C. more clever D. more rich 查看答案
题型:单项选择题 A1/A2型题 【背景资料】 某火灾报警及联动控制系统工程项目,某专业工程公司通过投标获得了该项目的施工任务。该公司在施工前根据施工总平面图设计编制了施工方案和施工进度计划,接着对施工总平面图设计做了分析评价,发现施工总平面图设计有不妥之处,责成有关人员对施工总平面图设计进行了优化。 该火灾报警及联动控制系统设备安装完成后,相关部门的有关人员对该系统设备进行了试运转。【问题】 查看答案
题型:单项选择题 A1/A2型题 转账类系统异常期间,系统恢复后交易记账失败时的做法错误的是()。A.应及时联系客户并反馈交易结果 B.要求客户将手工填制加盖业务受理印章回单交回网点 C.联系客户撤销交易 D.将回单交回该网点 查看答案