You know that X causes Y. You also know that Z causes X, and that Z does not cause Y. Which of these DAGS would be correct? ON-X-Y-Z OZ-X-Y-Z OX-Z-Y OZ-X-Y
You know that X causes Y. You also know that Z causes X, and that Z does not cause Y. Which of these DAGS would be correct? ON-X-Y-Z OZ-X-Y-Z OX-Z-Y OZ-X-Y
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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Question 25
You know that X causes Y. You also know that Z causes X, and that Z does not cause Y. Which of
these DAGS would be correct?
OZ-X-Y-Z
OZ-X-Y-Z
OX-Z-Y
O Z-X-Y
Question 26
Say that a data generating process can be correctly represented by the DAG Z-X→Y. What
controls would you need to identify the causal effect of X on Y?
O Depends on the statistical distribution I choose
O Controlling for Z is necessary
O Depends on the p-value I want
O Controls are not necessary in this case
Question 27
Assume that a data generating process can be correctly represented by the DAG A-X-Y-B. What
controls would you need to identify the causal effect of X on Y?
O Need to control for A or B
O No controls necessary
O Need to control for A and B
O Need to control for Z
Question 28
You suspect that the data generating process can be described with the DAG: X-Z-Y. Should you
include Z in your analysis of the relationship between X and Y?
O No because it is a collider
O Yes because it is a collider
O No because it is a confounder
OYes because it is a confounder
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