Consider a regression model which was estimated using GDP per capita growth as the dependent variable, and independent variables which included Trade (% of GDP), Population growth (%), Life expectancy (measured in measured in years) and country specific dummy variables. The coefficient of the Population growth variable is -0.98 and the associated t-statistic is -4.21. This coefficient means that Group of answer choices a 1% increase in population growth is associated with 0.98% decrease in economic growth. a 1% increase in population growth is associated with 0.98% increase in economic growth. an increase in population growth by one more person is associated with 0.98% decrease in economic growth. a 1% decrease in population growth is associated with 0.98% decrease in economic growth.