Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 7 - Estimates and Sample Sizes - 7-2 Estimating a Population Proportion - Beyond the Basics: 42

Answer

a) The lower bound will be below 0, which is not possible for the proportion. b)p is between 0 and 0.075.

Work Step by Step

a) We can't find the intervals because the lower bound will be below 0, which is not possible for the proportion. b) By using the Rule of Three, the upper bound: $\frac{3}{n}=\frac{3}{40}=0.075.$ The lower bound cannot be negative, hence it is 0, hence p is between 0 and 0.075.
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