[問題] 關於ANOVA假設性的問題??
ANOVA的模型是 Yij = μ+ αi + εij
= μi + εij
k
老師就說了 有一項假設是說: Σαi = 0 請解釋一下為什麼?
i=1
我只知道 αi 是處理效應 可是不知道為什麼αi全部加起來會=0?
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