Difference of Two Population Proportions (Test)
AP Statistics · Flashcards · Application
AP STATISTICS · FLASHCARDS
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QUESTION
Find
p
^
\hat{p}
p
^
using
x
1
=
30
x_1 = 30
x
1
=
30
,
x
2
=
40
x_2 = 40
x
2
=
40
,
n
1
=
100
n_1 = 100
n
1
=
100
,
n
2
=
100
n_2 = 100
n
2
=
100
.
QUESTION
Calculate
p
^
1
\hat{p}_1
p
^
1
with
x
1
=
40
x_1 = 40
x
1
=
40
,
n
1
=
120
n_1 = 120
n
1
=
120
.
QUESTION
Identify the statistical test for
n
1
=
30
n_1 = 30
n
1
=
30
,
n
2
=
40
n_2 = 40
n
2
=
40
,
x
1
=
15
x_1 = 15
x
1
=
15
,
x
2
=
20
x_2 = 20
x
2
=
20
.
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ANSWER
Two-proportion z-test. Sample sizes meet conditions for normal approximation.
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