阿摩線上測驗
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阿摩線上測驗
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8. (10分) Suppose in the simple linear regression model Y = α + βx + e in which 0 ＜ β ＜ 1
(b) Show that if x ＞ α/(1 - β), then x ＞ E(Y) ＞
, and conclude that E[Y] is always between x and α/(1 - β).