Chapter 11.2, Problem 4.1CYU

To determine

To plot an appropriate graph to compare the distributions of opinion about quality of life among heart attack patients in Canada and Unites States.

Explanation of Solution

Given:

The data of heart attack patients quality of life for Canada and United States is given below

  

The sample sizes are different for Canada and United States heart attack patients. So we compare the individuals in each country and their quality of life, we make segmented bar graph to compare these two distributions.

Graph:

  

Interpretation:

Here from the plot we can say that the percentage of patients who feel much better, Somewhat better about quality of life in Canada and United States are approximately equal. The percentage of patients who feel much worse and somewhat worse are more in Canada when compared to that of heart patients in United States. The percentage of patients who feel about the same are more in United States when compared to patients in Canada. Even though there are slight differences in the distribution of quality of life, we can approximately say that there is not much difference in quality of life among heart attack patients in U.S and Canada with reference of the plot.