Question: The data in the file STATES represent the results of the American Community Survey, a sampling of 700,000 households taken in each state during the 2000 U.S. Census. For each of the variables of average travel-to-work time in minutes, percentage of homes with eight or more rooms, median household income, and percentage of mort­gage-paying homeowners whose housing costs exceed 30% of income:

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

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

(c) Are the data skewed? If so, how?

(d) What conclusions can you reach concerning the mean travel-to-work time in minutes, percentage of homes with eight or more rooms, median household income, and percentage of mortgage-paying homeowners whose housing costs exceed 30% of income?