Answer
See below.
Work Step by Step
The subjects were consecutive cases, thus the results can't be generalized to the whole population, because the sample is not a random sample of the population and has a selection bias.
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 21 - Comparing Two Means - Chapter 21 Exercises - Page 510: 21.33b
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.
