Question 5 2 pts The 95% confidence intervals for the coefficients of 4 predicto

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Question 5 2 pts The 95% confidence intervals for the coefficients of 4 predictor variables (XI, X2, X3, and X4) in a model are (1,5), (-1,-2), (-1, 4), and (2, 3) respectively. Which variable would you eliminate first by backward elimination procedure? 0X1 x3 Question 6 2 pts The F-value for a given model and signifcance level is F, for sample size nq and F2 for sample size n If the R2 is same in both cases and F1 F2, then O n1 n2 n1 n2 O We need more information to comment on the relation between n1 and n2

Explanation / Answer

5) X3 variable should be elminated first as the interval for X3 is (-1,4) which is not significant as it contains 0.

6) n1>n2 as F value keeps on decreasing if n decreases

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