Answer
$33$
Work Step by Step
$N$ is the total sample size, thus it is the sum of the individual sample sizes: $N=n_1+n_2+n_3=12+9+12=33$
The Basic Practice of Statistics 7th Edition
by Moore, David S.; Notz, William I.; Fligner, Michael A.
Published by
W. H. Freeman
ISBN 10:
146414253X
ISBN 13:
978-1-46414-253-6
Chapter 27 - One-Way Analysis of Variance: Comparing Several Means - Apply Your Knowledge - Page 661: 27.10a
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
