=+58. Global reach 2012. The Internet has revolutionized business and offers unprecedented opportunities for globalization. However, the ability to access the Internet varies greatly among different regions of the world. One of the variables the United Nations collects data on each year is Personal Computers per 100 Population (unstats.un.org/unsd/

cdb/cdb_help/cdb_quick_start.asp) for various countries.

Below is a scatterplot showing the regression line, 95%

confidence intervals, and 95% prediction intervals using 2000 and 2012 computer adoption (personal computers per 100 population) for a sample of 85 countries. The response variable is PC/100 2012.

PC per 100 Year 2000 0 5 10 15 20 25 PC per 100 Year 2012 0

5 10 15 20 25 30 35 40 45