Using the countries in South America, let's analyze the relationship between GNP and infant mortality rate (IMR).
a. Construct a scatterplot from the following data, predicting IMR from GNP. What is the relationship between GNP and IMR for these 10 countries in South America?
b. Does it appear (visually) that a straight line fits these data? Why or why not?
c. Calculate the correlation coefficient and coefficient of determination. Do these values offer further support for you answer to (b)? How?
Please see the attached files for details.
Note. The conclusion highly depends on the significance level, the type I error you ...
The solution examines correlation coefficients and coefficient of determination.