class8-06 - Econ 444, Econ 444, Wednesday October 25 Robert...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Econ 444, Econ 444, Wednesday October 25 Robert de Jong 1 1 Department of Economics Ohio State University Robert de Jong Econ 444, Econ 444, Wednesday October 25
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Previous class: GRE scores: are GRE and SAT biased against women and ethnic groups? h GRE i = 172 . 4 + 39 . 7 G i + 78 . 9 GPA i ( 10 . 9 ) ( 10 . 4 ) + 0 . 203 SATM i + 0 . 110 SATV i ( 0 . 071 ) ( 0 . 058 ) GRE i = score of i th student on test G i = 1 if student is male, 0 otherwise GPA i = GPA in economics classas SATM i = score on SAT-mathematical SATV i = score on SAT-verbal Robert de Jong Econ 444, Econ 444, Wednesday October 25
Background image of page 2
Things to note on previous transparency 1 Dummy variable : a variable that takes on the values 0 and 1 only ( male/female dummy ) This means that if G i = 1 - i.e. for a man - we predict a higher GRE score than if G i = 0 (i.e. a woman) 2 Between parentheses: standard errors (we get those from Eviews output too!) Standard errors measure the statistical uncertainty in the coefficient cf. margin of error in the Bush-Kerry election 95% confidence interval (likely values for the coefficient): coefficient plus or minus 1.96 times the standard error Robert de Jong Econ 444, Econ 444, Wednesday October 25
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Mileage per gallon of various cars ˆ G i = 22 . 008 - 0 . 002 W i - 2 . 76 A i + 3 . 28 D i + 0 . 415 E i ( 0 . 001 ) ( 0 . 71 ) ( 1 . 41 ) ( 0 . 097 ) where G i = mileage per gallon as tested W i = gross weight of car, in pounds A i = 1 if car has automatic transmission, 0 otherwise D i = 1 if car has diesel engine, 0 otherwise E i = EPA estimate of mileage per gallon Robert de Jong Econ 444, Econ 444, Wednesday October 25
Background image of page 4
DJ i = ˆ β 0 + 0 . 10 R i - 1 + 0 . 0010 J i ( 0 . 01 ) ( 0 . 0006 ) - 0 . 017 M i + 0 . 0005 C i + . . . ( 0 . 004
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/13/2009 for the course ECON 444 taught by Professor Ogaki during the Fall '07 term at Ohio State.

Page1 / 20

class8-06 - Econ 444, Econ 444, Wednesday October 25 Robert...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online