Make a histogram, Q-Q plot, and a box-plot for the life expectancy for a continent of your choice, but for all years. Do the data appear normally distributed?
Select any 2 years in any continent and perform a t-test to determine whether mean life expectancy is significantly different. Remember to plot your data first.
Extract only the p-value from your
In 2007, in which continents did mean life expectancy differ from 70?
- Use ANOVA to determine if the population changed significantly through the 1990s/2000s in individual continents.