The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 9 - Producing Data: Experiments - Chapter 9 Exercises - Exploring the Web - Page 252: 9.53

Answer

The study is a comparative study because the results of different treatments are being compared. Randomization was used because the employees were randomly assigned to a treatment group. Total of 878 people used in the study.

Work Step by Step

The study is a comparative study because the results of different treatments are being compared. Randomization was used because the employees were randomly assigned to a treatment group. Total of 878 people used in the study.
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