Q: Answer yes or no to each of the items from a to c. If yes,...

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Q: Answer yes or no to each of the items from ato c. If yes, briefly justify the statement, if no, provide acounter-example or disprove the statement.
a) We have a sample of an individuals, indexedby i = 1, Â· Â· Â· , n. For the i-th individual, we can observeX_i andY_i. If we assume our sample is i.i.d.cross-sectionally, it implies Xi and Yi are independent with eachother.
b) In multivariate OLS, we have threeregressors X1, X2, X3. If (X1, X2), (X1, X3), and (X3, X2) are notperfectly correlated, then we do not have the perfectmulticollinearity.
c) T-test is still valid when OLS assumption 1correct specification is violated.

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3.6 Ratings (312 Votes)

I have answered the question belowPlease up vote for the same and thanksDo reach out in the comments for anyqueriesAnsweraFalseLet us consider Xi and Yi as variables for See Answer

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