Asked by:

Reede
Rating : No Rating
Questions Asked: 57
Tutorials Posted: 0

 

$5.00 13.30 A researcher used stepwise regression

• From Mathematics: Statistics
• Closed, but you can still post tutorials
• Due on Nov. 10, 2008
• Asked on Nov 10, 2008 at 12:52:42PM

Q:

13.30 A 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. BirthRates2
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 5.334 .802 .805
3 .0000 .0242 .0000 5.261 .807 .811
4 .5764 .0000 .0311 .0000 5.273 .806 .812

5 .5937 .0000 .6289 .0440 .0000 5.287 .805 .812

 

Attachments: