Draw Inferences From Random Samples
Middle School Math · Flashcards · Application
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
Four simulated sample proportions are
0.52
,
0.49
,
0.55
,
0.44
0.52, 0.49, 0.55, 0.44
0.52
,
0.49
,
0.55
,
0.44
. What is the range?
QUESTION
If many simulated samples give results between
0.47
0.47
0.47
and
0.53
0.53
0.53
, what is a reasonable prediction interval?
QUESTION
Which sample is more likely to give a stable estimate:
n
=
20
n=20
n
=
20
or
n
=
200
n=200
n
=
200
?
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ANSWER
n
=
200
n=200
n
=
200
. Larger samples reduce sampling variability and give more stable estimates.
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