The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 22 - Inference about a Population Proportion - Chapter 22 Exercises - Page 535: 22.31b

Answer

About 171 or more respondents ran a red light out of a total of 880 respondents. Since many would likely not be willing to admit to running a red light, even if they have, this is likely an underestimate.

Work Step by Step

About 171 or more respondents ran a red light out of a total of 880 respondents. This means that a few people are willing to admit that running a red light is a violation. Since many would likely not be willing to admit to running a red light, even if they have, this is likely an underestimate.
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