Answer
a) Cluster
b) Yes
Work Step by Step
a) It is a cluster sample because all of the samples came from members of one team.
b) The answer is yes for part b because monetary problems would occur if done a different way.
Stats Modeling the World, 4th Edition
by Bock, David E.; Velleman, Paul F.; De Veaux, Richard D.
Published by
Pearson
ISBN 10:
0133151549
ISBN 13:
978-0-13315-154-1
Chapter 11 - Sample Surveys - Exercises - Page 300: 4
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