Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 1 - Review - Review Exercises - Page 59: 5

Answer

In a study, when the researcher contols an explanatory variable, we have a designed experiment.

Work Step by Step

In a research, we want to know how a variable (explanatory variable) affects the value of the response of the individuals (response variable). If the researcher intentionally controls the explanatory variable, the study is a designed experiment.
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