In comparing two population means of interval data,we must decide whether the samples are independent (in which case the parameter of interest is )or matched pairs (in which case the parameter is μ_D)in order to select the correct test statistic.

Question

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This statement is true. Whether the samples are independent or matched pairs affects the calculation of the test statistic used to compare the population means. Independent samples require the use of the two-sample t-test, while matched pairs require the use of the paired or dependent samples t-test.

In Comparing Two Population Means of Interval Data,we Must Decide