题目内容

John:Welcome back to the show. I’m John Tyler. Tonight my guest is KellyZoidberg, CEO of TimeWaste, the incredibly (1) _________ social mediawebsite. Welcome the show, Kelly.Kelly:Thanks, John. It’s lovely to be here.John:Let’s start with your family life. I know you come from a big family.Kelly:Yes. I have eight brothers.John:Eight! It must have been interesting (2) _________ with so manybrothers. How about your parents? What do they do?Kelly:Well, may father is a doctor and my mother is a writer.John:Great. Those are both excellent (3) ___________. I understand youwent to Yale University. What did you study here?Kelly:I studied computers and got a master’s (4) ___________ in ComputerScience.John:While you were at Yale, you started your website “TimeWaste”. Is thatcorrect?Kelly:Yes, I did. Back then I had no idea how big it would become. I had agoal of getting 100 users in the first year.John:And how many users did you get in the first year?Kelly:100,000.John:Wow, that’s really (5) _________.

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在配对设计差值的符号秩和检验中,绝对值等于3的差值有-3、-3、3、3。如果它们顺位秩次为4、5、6、7,则第2个-3的秩次应为

A. 5
B. -5
C. 7
D. -5.5
E. 4

在作两样本均数比较时,已知n1、n2均小于30,总体方差不齐且呈极度偏态的资料宜用

A. t检验
B. 卡方检验
C. z检验
D. 方差分析
E. 秩和检验

配对计量资料,差值分布不服从正态分布,应选用

A. 配对t检验
B. F检验
C. 卡方检验
D. 配对比较的符号秩和检验
E. 两样本比较的秩和检验

秩和检验中,秩和T与P的关系

A. T落在界值范围内,则P小于相应概率
B. T落在界值范围内,则P大于相应概率
C. T落在界值范围外,则P 大于相应概率
D. T落在界值范围上,则P 大于相应概率
E. T落在界值范围上,则P 小于相应概率

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