If multicollinearity problem exists in eqution SSS which of the following statements is true? O a. OLS estimators of the parameters keep their neutrality, but their standard errors tend to decrease, so the t values become larger and the t-test is unreliable O b. The predictions that will be biased OLS estimators of the parameters become valid OC The t ratios of at least one of the coefficients will be statistically insignificant and the R2 values will be smalL O d. OLS estimators of the parameters keep their neutrality, but their standard errors tend to increase, so the t values become smaller and the t-test loses its reliability

If multicollinearity problem exists in eqution SSS which of the following statements is true? O a. OLS estimators of the parameters keep their neutrality, but their standard errors tend to decrease, so the t values become larger and the t-test is unreliable O b. The predictions that will be biased OLS estimators of the parameters become valid OC The t ratios of at least one of the coefficients will be statistically insignificant and the R2 values will be smalL O d. OLS estimators of the parameters keep their neutrality, but their standard errors tend to increase, so the t values become smaller and the t-test loses its reliability

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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