hant_homework
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hant_homework [2024/05/13 13:24] – [T1] hant_g._cavendish | hant_homework [2024/06/11 01:44] (当前版本) – hant_g._cavendish | ||
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====T1==== | ====T1==== | ||
- | * H< | + | * H< |
- | * 独立样本T检验,平均数之差为7,t< | + | * 独立样本T检验,S< |
+ | * 查表知df=28,α= .01的双尾检验临界值为2.763>2.333;接受H< | ||
====T2==== | ====T2==== | ||
- | - 11 | ||
====T3==== | ====T3==== | ||
行 109: | 行 109: | ||
====T5==== | ====T5==== | ||
- | ====T6==== | ||
行 115: | 行 114: | ||
====T1==== | ====T1==== | ||
+ | - 99%的置信区间,由均值和和方算得Z=2.58, | ||
=====第九章===== | =====第九章===== | ||
- | ====T1==== | + | ====T1-2==== |
- | | + | - {{:: |
- | + | ||
- | ====T2==== | + | |
- | - 11 | + | |
=====第十章===== | =====第十章===== | ||
====T1==== | ====T1==== | ||
- | - ll | + | - 11 |
====T2==== | ====T2==== | ||
行 142: | 行 137: | ||
- | [[Hant2ANOVA|T1]] | + | [[Hant2ANOVA|T1链接]] |
行 148: | 行 143: | ||
====T1==== | ====T1==== | ||
- | - ll | + | - {{:: |
+ | - r=0.69 | ||
+ | - r=0.3 | ||
+ | - r=-0.8 | ||
+ | - 皮尔森相关系数受样本点的具体数值和样本量的影响很大,样本容量为10,算是比较小的,相关系数稳定性较差。 | ||
====T2==== | ====T2==== | ||
- | - 11 | + | - {{:: |
+ | |||
+ | |||
+ | =====第十三章===== | ||
+ | |||
+ | ====T1==== | ||
+ | - {{:: | ||
+ | |||
+ | |||
+ | |||
+ | =====第十四章===== | ||
+ | |||
+ | ====T1==== | ||
+ | * 卡方算得约为59.58;自由度为2,α=0.05,查表得临界值为5.99,认为相关。 | ||
+ | |||
+ | ====T2==== | ||
+ | * 卡方算得约为46.03;自由度为3,α=0.05,查表得临界值为7.82,认为相关。 | ||
+ | |||
+ | =====第十五章===== | ||
+ | |||
+ | ====T1==== | ||
+ | * 14, 3,4,0,3,5,14, 3 | ||
+ | * 7.5,3,5,1,3,6,7.5,3 | ||
+ | |||
+ | ====T2==== | ||
+ | * U=25×10-50=200 | ||
====T3==== | ====T3==== | ||
- | | + | |
+ | |||
+ | ====T4==== | ||
+ | * 观测值为3+1+0.5=4.5,临界值为4,认为无显著差异。 | ||
hant_homework.1715606654.txt.gz · 最后更改: 2024/05/13 13:24 由 hant_g._cavendish