Inferences & Claims From Statistics
PSAT Math · Flashcards · Application
PSAT MATH · FLASHCARDS
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QUESTION
Identify the best conclusion: a
95
%
95\%
95%
CI for
p
p
p
is
[
0.42
,
0.58
]
[0.42,0.58]
[
0.42
,
0.58
]
; claim:
p
=
0.60
p=0.60
p
=
0.60
.
QUESTION
Identify the correct inference if a poll used a voluntary online response sample.
QUESTION
Which claim is supported: A
95
%
95\%
95%
confidence interval for a proportion is
(
0.30
,
0.36
)
(0.30,0.36)
(
0.30
,
0.36
)
. Is
0.40
0.40
0.40
plausible?
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ANSWER
No, because
0.40
0.40
0.40
is outside
(
0.30
,
0.36
)
(0.30,0.36)
(
0.30
,
0.36
)
. Values outside the interval are implausible at this confidence level.
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