Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 1 - Review - Test - Page 61: 9

Answer

If the individuals are assigned to certain groups and control the value of the explanatory variable, then it is called a designed experiment. An observational study measures the response variable without affecting the explanatory variable. The designed experiment allows a researcher to claim causality.

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