How do you find the standard error estimate of two disjoint populations, assuming they have the same population variance?

MATLAB: An Introduction with Applications
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How do you find the standard error estimate of two disjoint populations, assuming they have the same population variance?

Suppose that we have disjoint normal populations A
and B and we want to find the standard error estimate
for estimating the difference in their means. We have
an IRS from A of size 16 with variance 25 and an IRS
from B of size 6 with variance 36. What is the resulting
standard error estimate if we assume both populations
have the same population variance?
2.53
O NONE OF THE OTHERS
2.51
O 2.52
O 2.54
Transcribed Image Text:Suppose that we have disjoint normal populations A and B and we want to find the standard error estimate for estimating the difference in their means. We have an IRS from A of size 16 with variance 25 and an IRS from B of size 6 with variance 36. What is the resulting standard error estimate if we assume both populations have the same population variance? 2.53 O NONE OF THE OTHERS 2.51 O 2.52 O 2.54
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