[問題] 迴歸題目意思

看板Statistics作者chrisjon (恬靜悠閒)時間18年前 (2007/11/17 14:41)推噓4(4推 0噓 5→)

留言9則, 2人參與討論串1/1

Yi = β0 + β1X1 + β2X2 +εi ︿ Yi = -0.24 - 0.036*X1 + 0.132*X2 Yi = Net Income X1 = Sales X2 = Assets (d) At the .05 level of significance, determine whether each independent variable makes a contribution to the regression model. Based on these results, indicate the regression model that should be utilized in this problem. (e) Evalute the appropriateness of the developed model. d看不太懂，不過根據e小題，感覺應該是要檢定出β1或β2不顯著，但是兩者都顯著再看了一下β0，卻是不顯著的難道d是要檢定出β0=0，然後e小題要把原模型改成0截距模型嗎? 怕會錯題目意思，上來請教一下 -- 要常玩BG 頭腦才不會退化 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 163.25.135.136

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dick0631

11/17 16:10, , 1^F

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dick0631

11/17 16:11, , 2^F

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dick0631

11/17 16:11, , 3^F

11/17 16:11, 3^F