Chapter 3, Problem 75PS

Have you wondered how Internet connection speed varies around the globe? The file ConnectionSpeed contains the mean connection speed, the mean peak connection speed, the $\%$ of the time the speed is above 4 Mbs, and the $\%$ of the time the connection speed is above 10 Mbps for various countries.

Answer (a) through (c) for each variable.

a. Compute the mean, median, first quartile, and third quartile.

b. Compute the range, interquartile range, variance, standard deviation, and coefficient of variation.

c. Construct a boxplot. Are the data skewed? li so, how?

d. Compute the coefficient of correlation between mean connection speed. mean peak connection speed, percent of the time the speed is above 4 Mbps, and the percent of the time the connection speed is above 10 Mbps.