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Questions › DSE › DSE 2015 › Q43
2 marks, −0.666666666666667Econometrics › Goodness of fit and model selection › Sums of squares and variance decompositionModerateabout 3 min

DSE 2015 Question 43: Goodness of fit and model selection

For the same regression (Wi=300−50Di+uiW_i=300-50D_i+u_iWi​=300−50Di​+ui​; 150150150 men, 505050 women), the explained (regression) sum of squares is

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For the same regression (Wᵢ=300-50Dᵢ+uᵢ; 150 men, 50 women), the explained (regression) sum of squares is (A) 93750 (B) 1406.25 (C) 15000 (D) this cannot be calculated from the information given

Also written as: For the same regression (W_i=300-50D_i+u_i; 150 men, 50 women), the explained (regression) sum of squares is

Goodness of fit and model selection has come up 27 times in 6 exams since 2009.

What this question tests

This question is on Sums of squares and variance decomposition, part of Goodness of fit and model selection in Econometrics.

Splitting total variation into explained and unexplained parts.

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Question from the DSE 2015 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.