Question 188119: Textbook- Applied Statistics
ISBN-13: 978-0-07-296693-0
13.30A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors: LifeExp (life expectancy in years), InfMort (infant mortality rate), Density (population density per square kilometer), GDPCap (Gross Domestic Product per capita), and Literate (literacy percent). Interpret these results.
Regression Analysis—Stepwise Selection (best model of each size)
153 observations
BirthRate is the dependent variable
p-values for the coefficients
Nvar LifeExp InfMort Density GDPCap Literate s Adj R2 R2
1 .0000 6.318 .722 .724
2 .0000 .0000 .334 .802 .805
3 .0000 .0242 .0000 .261 .807 .811
4 .5764 .0000 .0311 .0000 .273 .806 .812
5 .5937 .0000 .6289 .0440 .0000 .287 .805 .812
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 13.30A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors: LifeExp (life expectancy in years), InfMort (infant mortality rate), Density (population density per square kilometer), GDPCap (Gross Domestic Product per capita), and Literate (literacy percent). Interpret these results.
Regression Analysis—Stepwise Selection (best model of each size)
153 observations
BirthRate is the dependent variable
p-values for the coefficients
Nvar LifeExp InfMort Density GDPCap Literate s Adj R2 R2
1... .0000... 6.318.. 0.7220.. 0.7240
2... .0000.. .0000 ...0.3340.. 0.8020.. 0.805
3... .0000.. .0242.... .0000.. 0.2610.. 0.807.. .811
4... .5764.. .0000.... .0311...0.0000.. 0.273.. .806 .812
5 ....5937.. .0000.... .6289.. 0.0440.. .0000.. .287 .805 .812
----------
The discussion for this is the last paragraph on page 591 of your text.
Since the discussion could be wide ranging I will not attempt a
narrative response.
------------------
Cheers,
Stan H.
|
|
|
