Question

For a test of hypotheses to compare two means, which of the following situations could have...

For a test of hypotheses to compare two means, which of the following situations could have independent samples?

A n1 equals n2

B comparing identical twins

C n1 does not equal n2

D comparing female investors to male investors

Math   Statistics-And-Probability   
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Answer #1

For a test of hypotheses to compare two means, the following situations could have independent samples:

A. n1 = n2.[ Same number of independent random samples are taken from 2 different populations]

C.n1 does not equal to n2 [ Different number of independent random samples are taken from 2 different populations ]

D.Comparing female investor to male investors.[These are 2 different populations and independent samples are taken

B is not correct, because here samples are dependent. we have to compare one with his identicals twin only. It is paired t , of dependent t.

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