Essentials of Statistics (5th Edition)

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

Chapter 1 - Introduction to Statistics - Review - Review Exercises - Page 37: 10


a)780 adults. b)23% c)male:48.47%, female:51.53% d)We don't know. e)We don't know.

Work Step by Step

a) 52%=0.52, $0.52\cdot 1500=780 \ adults.$ b)$\frac{345}{15000}=0.23=23$% c)male:$\frac{727}{1500}=0.4847=48.47$%, female:$\frac{773}{1500}\approx0.5153=51.53$% d)We don't know, because we don't know how to find out whether it is statisitically significant. e)We don't know, because saying that something is signifcant is really subjective.
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