ˊ_ゝˋ
12 years ago
終於睡了十二小時,頭痛到爆
然後,我不明這題問啥https://images.plurk.com/7bd2216a88ea1dc826483f18f5f67ba6.gif
latest #17
ˊ_ゝˋ
12 years ago
所以說p1就是37/250還是什麼...
小熊座
12 years ago
原來你做緊STAT.我依家先睇到
小熊座
12 years ago
P1應該係37/250掛...=V=
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ˊ_ゝˋ
12 years ago
我做完part a好耐喇XD
ˊ_ゝˋ
12 years ago
p1的確係37/250,independent就係53.5/250 不過唔知part b想點所以做緊linear regression
貝花.
12 years ago
oh stat
ˊ_ゝˋ
12 years ago
唔好得個oh字啦教下我XD
劉嬸...
12 years ago
我唔係好記得條式
ˊ_ゝˋ
12 years ago
咁你明唔明佢問咩? 係咪照計p1p4個sample sd搵CI就得...?
劉嬸...
12 years ago
95% CI-->alpha=0.05
劉嬸...
12 years ago
p1-p4-Z0.05/2[(p1q1+p4q4)/250]^1/2<p1-p4<p1-p4+Z0.05/2[(p1q1+p4q4)/250]^1/2
劉嬸...
12 years ago
p1同p4我無計
劉嬸...
12 years ago
妳自己SUB啦
ˊ_ゝˋ
12 years ago
https://images.plurk.com/b0c94b72f955e139a1e337219c0a4a9d.gif點解唔係咁既?
ˊ_ゝˋ
12 years ago
其實我係見Zx果個野係(S^2 / n + S^2 / n)^1/2 所以先除多次250@@
劉嬸...
12 years ago
就係咁呀
ˊ_ゝˋ
12 years ago
哦~好野(applause)
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