MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:Let's investigate this Spotify question for a second time in this problem set. You run
the following regression:
Popularity = Bo + B₁ Danceability +
Now your friend says that a song's danceability is also related to it's tempo (how fast
the song is). And since you aren't controlling for this in your model, your results are
biased. Suppose the following facts:
• On average, faster songs are more danceable.
. On average, faster songs are more popular.
A. Does this model suffer from omitted variable bias?
either "YES" or "NO".
B. If you sign the omitted variable bias expression, what is the sign of B₂?
Answer either "Positive" or "Negative"
Answer
succedulcourses/59813/quizzes90539
4 PM
Quiz Problem Set 3
C. What direction is the omitted variable bias? In other words, in what direction is ₁
biased?
Answer either "UPWARDS" or "DOWNWARDS"
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