Competing Function Model Validation
AP Precalculus · Flashcards · Application
AP PRECALCULUS · FLASHCARDS
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QUESTION
Find the residual if the observed value is
y
=
7
y=7
y
=
7
and the model predicts
y
^
=
9
\hat{y}=9
y
^
=
9
.
QUESTION
Identify the better fit if Model A has
R
2
=
0.93
R^2=0.93
R
2
=
0.93
and Model B has
R
2
=
0.88
R^2=0.88
R
2
=
0.88
on the same data.
QUESTION
Identify the better fit if Model A has
S
S
E
=
120
SSE=120
S
S
E
=
120
and Model B has
S
S
E
=
95
SSE=95
S
S
E
=
95
on the same data.
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ANSWER
Model B. Lower SSE means Model B has smaller prediction errors.
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