Based on the residual plot, is the linear model appropriate?
A student is preparing to take a standardized exam.
She was told that she needs to get plenty of sleep the
night before the exam. She is interested in the
relationship between the number of hours of sleep a
student gets before the exam and the score earned on
the exam. She collects information from 10 other
students who have already taken the exam as shown
in the table.
No, there is no clear pattern in the residual plot.
O Yes, there is no clear pattern in the residual plot.
O No, the student who got the most sleep had a
negative residual.
Yes, there are more negative residuals (6) than
positive residuals (4).
Score
Amount of
Sleep (Hours)
3
7.5
7.5
4
8.5
30
28
32
20
21
21
23
24
31
2
5
4.5
5