Stats: Data and Models (3rd Edition)

Published by Pearson
ISBN 10: 0321692551
ISBN 13: 978-0-32169-255-9

Chapter 19 - Confidence Intervals for Proportions - Exercises - Page 475: 20

Answer

See below.

Work Step by Step

The city council is not likely to conclude anything about the public support because they need to voluntarily respond and mostly those people take part in the study who have the strongest opinions, thus the sample would be biased.
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