Question: In a simple linear regression model, the slope estimate will have a smaller standard error, other things equal, if A) There is more variation in

In a simple linear regression model, the slope estimate will have a smaller standard error, other things equal, if

A) There is more variation in the explanatory variable X

B) The variance of the error term is smaller

C) The sample size is larger

D) All of the above (a through c)

E) None of the above (a through c)

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