when to use paired sample t-test
Paired Sample T-Test. Paired sample t-test is a statistical technique that is used to compare two population means in the case of two samples that are correlated. Paired sample t-test is used in âbefore-afterâ studies, or when the samples are the matched pairs, or when it is a case-control study.
Paired Sample t Test. In paired sample hypothesis testing, a sample from the population is chosen and two measurements for each element in the sample are taken. Each set of measurements is considered a sample. Unlike the hypothesis testing studied so far, the two samples are not independent of one another. dialog box will appear (as in Figure 3 of Two Sample t Test: Unequal Variances). Enter the input range B3:C18 and choose the Column headings included with the data, Paired Samples and T Test options and press the OK button.