Which of the following statements are true concerning the mean of the difference
ID: 3058296 • Letter: W
Question
Which of the following statements are true concerning the mean of the differences between two dependent samples (matched pairs)?
Select all that apply.
A.
If one wants to use a confidence interval to test the claim that
mu Subscript d Baseline greater than 0d>0
with a
0.100.10
significance level, the confidence interval should have a confidence level of
8080%.
B.
If one has
tenten
matched pairs of sample data, there is a loose requirement that the
tenten
differences appear to be from a normally distributed population.
C.
If one has more than
1515
matched pairs of sample data, one can consider the sample to be large and there is no need to check for normality.
D.
The methods used to evaluate the mean of the differences between two dependent variables apply if one has
3636
IQ scoresIQ scores
of
workersworkers
from
OhioOhio
and
3636
IQ scoresIQ scores
of
workersworkers
from
New YorkNew York.
E.
The requirement of a simple random sample is satisfied if we have
independentindependent
pairs of
voluntary responsevoluntary response
data
Explanation / Answer
Which of the following statements are true concerning the mean of the differences between two dependent samples (matched pairs)?
Select all that apply.
A.
If one wants to use a confidence interval to test the claim that
mu Subscript d Baseline greater than 0d>0
with a
0.100.10
significance level, the confidence interval should have a confidence level of
8080%.
B.
If one has
tenten
matched pairs of sample data, there is a loose requirement that the
tenten
differences appear to be from a normally distributed population.
C.
If one has more than
1515
matched pairs of sample data, one can consider the sample to be large and there is no need to check for normality.
D.
The methods used to evaluate the mean of the differences between two dependent variables apply if one has
3636
IQ scoresIQ scores
of
workersworkers
from
OhioOhio
and
3636
IQ scoresIQ scores
of
workersworkers
from
New YorkNew York.
E.
The requirement of a simple random sample is satisfied if we have
independentindependent
pairs of
voluntary responsevoluntary response
data
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