Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
某特定品种狗的体重: n = 9 , \bar X = 15 kg, s = 1,2 kg。构造95%置信区间。
某特定品种狗的体重: n = 9 , \bar X = 15 kg, s = 1,2 kg。构造95%置信区间。
Natural Language
Math Input
Extended Keyboard