Question
In: Statistics and Probability
You should use a pooled t-test versus a non-pooled t-test when the samples are matched. the...
You should use a pooled t-test versus a non-pooled t-test when
the samples are matched.
the variance of the two populations are equal.
the sample sizes of both groups are the same.
None of these
the samples are matched and the sample sizes of both groups are the same.
Solutions
Expert Solution
Solution:
Answer is
the variance of the two populations are equal.
Explanation:
t test for testing the difference between two means
The hypothesis are
H0: 1
=
2
Ha :
1
2
n1 and n2 are the sample sizes.
s1 and s2 are the sample standard deviations.
There are two types
Pooled t test is used when two population variances are assumed to be equal.
Non pooled t test is used when two population variances are assumed to be unequal.
So , answer is '
the variance of the two populations are equal.
orchestra answered 2 years agoRelated Solutions
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