[商管] [統計]迴歸分析的觀念題

[alex2014 (綠影)]

  題目如下,In a linear regression model Y=α+βX+ε,then choose the true

           answer ?

           (A) SSR increases  as SST increases

           (B) β increases as SSR increases

           (C) β is the increase of E(Y) as X increases one unit

           (D) If the model is written as Y =α'+β'(X-X[BAR])+ε,then

               the estimators for β and β'are different.

           (E)  None of the above

         希望可以解釋一下各選項的對錯為何!!簡略說明一番


         感謝各位統計高手的幫忙,小弟必會心存感激的

         祝福各位學業進步,事事順心!

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