Use the dataset AllCountries to examine the correlation between birth rate and life expectancy across countries of
Question:
Use the dataset AllCountries to examine the correlation between birth rate and life expectancy across countries of the world.
(a) Plot the data. Do birth rate and life expectancy appear to be linearly associated?
(b) From this dataset, can we conclude that the population correlation between birth rate and life expectancy is different from zero?
(c) Explain why inference is not necessary to answer part (b).
(d) For every percent increase in birth rate, how much does the predicted life expectancy of a country change?
(e) From this dataset, can we conclude that lowering the birth rate of a country will increase its life expectancy? Why or why not?
Step by Step Answer:
Statistics Unlocking The Power Of Data
ISBN: 9780470601877
1st Edition
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock