Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Textbook Question
Chapter 11, Problem 28P
Use the following information to answer the next seven exercises: Transit Railroads is interested in the relationship between
travel distance and the ticket class purchased. A random sample of 200 passengers is taken. Table 11.31 shows the results.
The railroad wants to know if a passenger’s choice in ticket class is independent of the distance they must travel.
Traveling Distance | Third class | Second class | First class | Total |
1−100 miles | 21 | 14 | 6 | 41 |
101−200 miles | 18 | 16 | 8 | 42 |
201−300 miles | 16 | 17 | 15 | 48 |
301−400 miles | 12.00% | 14 | 21 | 47 |
401−500 miles | 6 | 6 | 10 | 22 |
Total | 73 | 67 | 60 | 200 |
Table 11.31
How many passengers are expected to travel between 201 and 300 miles and purchase second-class tickets?
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Introductory Statistics
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