Technology and the Internet Based on test results, Speedtest.net publishes an Internet download index for countries all over the world. In July 2013, the mean download speed for the entire world was 13.91 Mbps.21 A random sample of states was obtained and the download index for each was recorded.
Assume the underlying population is normal and that σ = 3.4. Is there any evidence to suggest that the download speed for the United States is greater than the world population mean? Use a = 0.01.