Difference of Two Means (Setup)
AP Statistics · Flashcards · Application
AP STATISTICS · FLASHCARDS
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QUESTION
Find the degrees of freedom for a two-sample t-test with
n
1
=
10
n_1=10
n
1
=
10
and
n
2
=
12
n_2=12
n
2
=
12
.
QUESTION
Find the degrees of freedom for a two-sample t-test with
n
1
=
10
n_1=10
n
1
=
10
and
n
2
=
12
n_2=12
n
2
=
12
.
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ANSWER
d
f
=
20
df = 20
df
=
20
. Calculated as
n
1
+
n
2
−
2
=
10
+
12
−
2
=
20
n_1 + n_2 - 2 = 10 + 12 - 2 = 20
n
1
+
n
2
−
2
=
10
+
12
−
2
=
20
.
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