Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 7 - Estimates and Sample Sizes - 7-2 Estimating a Population Proportion - Page 333: 20

Answer

a) p is between 0.2263 and 0.2979. b) it doesn't contradict the theory.

Work Step by Step

a) We are 95% confident that the proportion lies within between 0.2263 and 0.2979. b) 0.25 is between 0.2263 and 0.2979 hence it doesn't contradict the theory.
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