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The confidence interval for the independent-samples t test is centered around the _____. difference between means...

The confidence interval for the independent-samples t test is centered around the _____.

difference between means

difference between variances

sample mean

population mean
math   Statistics-And-Probability   
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Answer #1

Solution:

The independent-samples t test is used to find if there is difference between population means, thus its point estimate is the difference between means of two samples and this point estimate is used to find confidence interval of  the independent-samples t test .

Thus correct answer is: difference between means.

That is:

The confidence interval for the independent-samples t test is centered around the  difference between means.

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