1. The National Transportation Institute published a report in 2018 about the extra travel time in hours (due to traffic congestion) for commute travel per traveler per year for dif- ferent cities. Below are the data for cities with a population of over 3 million in 2018: Los Angeles, CA 98 San Francisco, CA 75 Washington, DC 66 Atlanta, GA 64 Houston, TX 65 Dallas, TX 61 Chicago, IL 55 Detroit, MI 54 Miami, FL 48 Boston, MA 53 New York, NY 50 Phoenix, AZ 49 Philadelphia, PA 40 (a) Draw a stem and leaf plot for this dataset. (b) What percentage of this dataset is within one standard deviation of the mean? How does this percentage compare to the empirical rule? (c) Construct a boxplot for this dataset showing all your steps and comment on its shape