Slope of a Regression Model (Test)
AP Statistics · Flashcards · Application
AP STATISTICS · FLASHCARDS
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QUESTION
Identify the correct conclusion when
p
=
0.12
p=0.12
p
=
0.12
and
α
=
0.05
\alpha=0.05
α
=
0.05
for
H
a
:
β
>
0
H_a: \beta > 0
H
a
:
β
>
0
.
QUESTION
Compute the test statistic when
b
=
2.4
b=2.4
b
=
2.4
,
S
E
b
=
0.6
SE_b=0.6
S
E
b
=
0.6
, and
H
0
:
β
=
0
H_0: \beta=0
H
0
:
β
=
0
.
QUESTION
Find the degrees of freedom for a slope test when the sample size is
n
=
18
n = 18
n
=
18
.
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ANSWER
d
f
=
16
df = 16
df
=
16
.
d
f
=
18
−
2
=
16
df = 18 - 2 = 16
df
=
18
−
2
=
16
for simple linear regression.
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