Question 15 8 points Save Answer Suppose the population regression model is Y B0 B1X1 B2X But you mistakenly just regress Y only on X1 If Cov(X1,X2) 0 and B2 0, then the OLS estimate of 1 a is biased, but still consistent O b has a downward bias c has an upward bias O d is inconsistent, but still unbiased

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Question: Question 15 8 points Save Answer Suppose the population regression model is Y=B0+B1X1+ B2X+ . But you mistakenly just regress Y only on X1.

Question 15 8 points Save Answer Suppose the population regression model is

Question 15 8 points Save Answer Suppose the population regression model is Y=B0+B1X1+ B2X+ . But you mistakenly just regress Y only on X1. If Cov(X1,X2) 0, then the OLS estimate of 1: a. is biased, but still consistent. O b. has a downward bias. c. has an upward bias. O d. is inconsistent, but still unbiased. ?

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