The Essentials of Statistics: A Tool for Social Research
The Essentials of Statistics: A Tool for Social Research
4th Edition
ISBN: 9781305802698
Author: Joseph F. Healey
Publisher: Cengage Learning US
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Chapter 2, Problem 2.10P

PA/CJ As part of an evaluation of the efficiency of your local police force, you have gathered the following data on police response tie to calls for assistance during two different years. (Response times were rounded off to whole minutes.) Convert both frequency distributions into percentages, and write a paragraph comparing the changes in response time between the two years.

Response Time, 2000 Frequency (f)
21 minutes or more 20
16-20 minutes 90
11-15 minutes 185
6-10 minutes 370
Less than 6 minutes 210
Total 875
Response Time, 2010 Frequency (f)
21 minutes or more 45
16-20 minutes 95
11-15 minutes 155
6-10 minutes 350
Less than 6 minutes 250
Total 895
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