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Questions › DSE › DSE 2018 › Q50
4 marks, −1Econometrics › Linear regression and OLS › Interpreting slopes, intercepts and rescalingEasyabout 2 min

DSE 2018 Question 50: Linear regression and OLS

Suppose your data produces the regression result y=10+3xy = 10 + 3xy=10+3x. Scale yyy by multiplying observations by 0.90.90.9 and do not scale xxx. The new intercept and slope estimates will be

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Suppose your data produces the regression result y = 10 + 3x. Scale y by multiplying observations by 0.9 and do not scale x. The new intercept and slope estimates will be (A) 10 and 3 (B) 9 and 3 (C) 9 and 2.7 (D) 10 and 2.7

Linear regression and OLS has come up 74 times in 7 exams since 2008.

What this question tests

This question is on Interpreting slopes, intercepts and rescaling, part of Linear regression and OLS in Econometrics.

Reading a fitted coefficient, and what changes when variables are rescaled.

TestStop has 12 past-paper questions on this subtopic.

Practise Linear regression and OLSMore on Interpreting slopes, intercepts and rescaling

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