Is the birth rate different in developed and undeveloped countries? In the dataset AllCountries, we have information on the birth rate of all 213 countries as well as an indicator for whether the country is considered a developed or undeveloped nation. Use the five number summaries for each group of countries in Table A.7 to answer the following questions.

Table A.7

(a) Does the birth rate distribution appear to be different in developed and undeveloped countries?

(b) Would any of the undeveloped countries be outliers if they were considered developed? What about developed countries if they were considered undeveloped?
(c) Libya 4 is on the border between being considered developed or undeveloped. The birth rate in Libya is 23.3. Is this an outlier for undeveloped countries? Is it an outlier for developed countries?

(d) Using the five number summaries, make a rough sketch of side-by-side boxplots for birth rate (ignoring outliers).

Transcribed Image Text:

1st 3rd Min Quartile Median Quartile Max 8.3 10.6 18.3 23.4 11.7 24.4 15.2 31.2 Developed Undeveloped 9.1 44.9