生統簡單迴歸 - 考試
By Thomas
at 2015-01-21T16:23
at 2015-01-21T16:23
Table of Contents
題目
抽查6家船公司的廣告費X 銷售額Y
欲建立簡單迴歸模式
X 0 1 1 2 3 3
Y 2 4 3 5 6 7
試以最小平方法求:
(1)b1(2)b0(3)MSE
前兩小題我已算出來
但我不太清楚MSE是要用哪種方式求得
我知道MSE=SSE/n-2
SSE=SST(1-r2)
我是要先求出r2嗎?
還是說我方向錯了?
這題算好久算不出來…謝謝。
--
Sent from my Android
--
抽查6家船公司的廣告費X 銷售額Y
欲建立簡單迴歸模式
X 0 1 1 2 3 3
Y 2 4 3 5 6 7
試以最小平方法求:
(1)b1(2)b0(3)MSE
前兩小題我已算出來
但我不太清楚MSE是要用哪種方式求得
我知道MSE=SSE/n-2
SSE=SST(1-r2)
我是要先求出r2嗎?
還是說我方向錯了?
這題算好久算不出來…謝謝。
--
Sent from my Android
--
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考試
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