Why is it possible to show a cause-and-effect relationship between two variables using an experiment and not an observational study? (A) Unlike observational studies, experi- ments can be double-blinded. (B) Unlike observational studies, experi- ments control for confounding variables. (C) Unlike observational studies, experi- ments can be blocked. (D) Experiments tend to be conducted with more care for details than observational studies. (E) Experiments tend to use larger sample sizes than observational studies.
Why is it possible to show a cause-and-effect relationship between two variables using an experiment and not an observational study? (A) Unlike observational studies, experi- ments can be double-blinded. (B) Unlike observational studies, experi- ments control for confounding variables. (C) Unlike observational studies, experi- ments can be blocked. (D) Experiments tend to be conducted with more care for details than observational studies. (E) Experiments tend to use larger sample sizes than observational studies.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Topic Video
Question
![3. Why is it possible to show a cause-and-effect
relationship between two variables using an
experiment and not an observational study?
(A) Unlike observational studies, experi-
ments can be double-blinded.
(B) Unlike observational studies, experi-
ments control for confounding variables.
(C) Unlike observational studies, experi-
ments can be blocked.
(D) Experiments tend to be conducted with
more care for details than observational
studies.
(E) Experiments tend to use larger sample
sizes than observational studies.
近](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c8f60c8-0e6b-4dfd-8761-02961214ab97%2F863dc1da-9326-49ae-99d6-4f72b60d0cb2%2Ffm080ak_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. Why is it possible to show a cause-and-effect
relationship between two variables using an
experiment and not an observational study?
(A) Unlike observational studies, experi-
ments can be double-blinded.
(B) Unlike observational studies, experi-
ments control for confounding variables.
(C) Unlike observational studies, experi-
ments can be blocked.
(D) Experiments tend to be conducted with
more care for details than observational
studies.
(E) Experiments tend to use larger sample
sizes than observational studies.
近
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