1. A 2018 report from the Texas Transportation Institute looked into the extra travel time in hours (due to traffic congestion) for commute travel per traveler per year for different urban areas. Below are the data for urban areas with a population of over 3 million: 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 two standard deviations of the mean? How does this percentage compare to Chebyshev's Rule and the Empirical Rule? (c) Draw a box plot for this dataset, showing all your steps and comment on the shape. 2. A warehouse in Anchorage ships 60% of its overnight packages using FedEx and 40% using UPS. Historical data shows that FedEx fails to meet the 10 AM delivery promise for 3% of its overnight packages, whereas UPS fails to deliver by 10 AM for 7% of its overnight packages. (a) Construct a tree diagram containing the given percentages. (b) Which percentage of overnight packages shipped by the warehouse meet the 10 AM delivery promise? (c) Of all overnight packages that are delivered by 10 AM, which percentage were shipped by UPS? (d) Of all overnight packages that are not delivered by 10 AM, which percentage were shipped by UPS