The gross domestic product (GDP) is an important measure of the overall economic strength of a country. GDP per capita makes comparisons between different size countries more meaningful. A researcher looking at GDP, fit one model based on an educational variable, Primary School Completion Rate

(%),

and another model based on two additional variables. Use the accompanying regression outputs to complete parts (a) through (c).

Dependent variable is: GDP per Capita R squared = 3.975% s = 15945.46 with 96 - 1 = 92 degrees of freedom Term Estimate SE (Coeff) t-Ratio P-value Intercept 1975.40614 6033.9280 0.327 0.7441 Primary Completion Rate 121.35560 65.8061 1.844 0.0684Dependent variable is: GDP per Capita R squared = 85.0% s = 7327.65 with 96 -4 =92 degrees of freedom Term Estimate SE (Coeff) t-Ratio P-value Intercept 2754.5221 2731.19886 1.01 0.3158 Cell phones / 100 people 92.22746 37.42387 2.46 0.0156 Internet users per 100 people (2004) 480.16504 54.50497 8.81