Scenario: We’ll continue to examine the World Development Indicators data in BirthRate 2005. Throughout the exercise, we’ll use BirthRate as the Y variable.

We’ll broaden our analysis to work with other variables in that file:

 MortUnder5: deaths, children under 5 years per 1,000 live births

 MortInfant: deaths, infants per 1,000 live births  MortMaternal: number of maternal deaths in childbirth per 100,000 live births

a. Initially estimate a model using all three of the above-listed variables.
Evaluate your model and report on your findings.

b. Drop the weakest of the three variables from the model and re-estimate using a reduced model with two independent variables. Report on your findings, comparing these results to those for the prior model.