[试题] 101下 王衍智 统计学一下 第一二三次小考

楼主: d3osef (阿嘉)   2014-07-09 20:35:39
课程名称︰王衍智
课程性质︰必修
课程教师︰统计学一下
开课学院:管理学院
开课系所︰财务金融学系
考试日期(年月日)︰
考试时限(分钟):10 / 10 / 10
是否需发放奖励金:是
(如未明确表示,则不予发放)
试题 :
Quiz 1
1. Following counts are shipments for 80 days in a small front. Please test if
the shipment per day follows Passion distribution.
# of shipment True occurrences Theoretical occurrences
0 45
1 23
2 12
>2 0
2. Please test the independence (upon a Chi-square test) of gender and
education from survey.
Gender \ Education Junior school Senior high College Total
Male 25 30 25 80
Female 35 15 20 70
Total 60 45 45 150
3. We want to know if a set of data following a normal distribution, and we
carry out Chi-square test on that. The data are grouped into 12 groups. By
chi-square test, X^2=17. Please verify if this series follows a normal at
(one-tail) 5% significance level.
卡方表:http://imgur.com/upkwL5n

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