Elementary Statistics (12th Edition)

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

Chapter 7 - Estimates and Sample Sizes - Review - Chapter Quick Quiz: 1

Answer

p is between 40%-3.1%=36.9% and 40%+3.1%=43.1%.

Work Step by Step

The confidence interval's boundaries are the point estimate decreased and increased by the margin of error, hence p is between 40%-3.1%=36.9% and 40%+3.1%=43.1%.
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