Answer
a) Observational
b) Experimental
Work Step by Step
a) This is observational because it is simply observing, influences or treatment is not involved.
b) This is an experiment because there is a treatment involved.
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 1 - Introduction to Statistics - Chapter Quiz - Page 32: 5
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.
