Elementary Statistics (12th Edition)

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

Chapter 1 - Introduction to Statistics - Review - Review Exercises: 4

Answer

a. Not representative, could be inaccurate. b. Parameter c. Observational Study

Work Step by Step

a. They are basing the data on a survey where only 7000 people responded out of 25,000. Therefore it is not representative and could be inaccurate. b. It is describing an entire population, therefore it is a parameter. c. No treatment was made, therefore it is an observational study.
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