Expand Your Knowledge: Split Stem The Boston Marathon is the oldest and best-known U.S. marathon. It covers
Question:
Expand Your Knowledge: Split Stem The Boston Marathon is the oldest and best-known U.S. marathon.
It covers a route from Hopkinton, Massachusetts, to downtown Boston. The distance is approximately 26 miles. The Boston Marathon web site has a wealth of information about the history of the race. In particular, the site gives the winning times for the Boston Marathon. They are all over 2 hours. The following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each:
Earlier Period 23 23 18 19 16 17 15 22 13 10 18 15 16 13 9 20 14 10 9 12 Recent Period 9 8 9 10 14 7 11 8 9 8 11 8 9 7 9 9 10 7 9 9
(a) Make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. Use two lines per stem.
(b) Make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period.
Use two lines per stem.
(c) Interpretation Compare the two distributions.
How many times under 15 minutes are in each distribution?AppendixLO1
Step by Step Answer:
Understandable Statistics Concepts And Methods
ISBN: 9780357719176
13th Edition
Authors: Charles Henry Brase, Corrinne Pellillo Brase