In comparing two population means of interval data, we must decide whether the samples are independent (in which case the parameter of interest is $\mu _ { 1 } - \mu _ { 2 }$ ) or matched pairs (in which case the parameter is $\mu$_D) in order to select the correct test statistic.

Question

Quizplus · Accepted Answer

When comparing two population means, the choice of test statistic depends on whether the samples are independent or paired, as this affects the assumptions and calculations involved in the analysis.

In Comparing Two Population Means of Interval Data, We Must μ1−μ2\mu _ { 1 } - \mu _ { 2 }μ1​−μ2​

In Comparing Two Population Means of Interval Data, We Must $\mu _ { 1 } - \mu _ { 2 }$