Paired T Test Example. A paired t test is used to compare two population means where you have two samples in which observations in one sample can be paired with observations in the other sample. The paired t test is a method used to test whether the mean difference between pairs of measurements is zero or not.
Suppose you are interested in evaluating the effectiveness of a company training program. A measurement taken at two different times e g pre test and post test with an intervention administered between the two time points a measurement taken under two different conditions e g completing a test under a control condition and an experimental condition. Before and after observations on the same subjects e g.
M d 0 step 2.
Examples of where this might occur are. You can use the test when your data values are paired measurements. When can i use the test. To test this we may recruit a simple random sample of 20 college basketball players and measure each of their max vertical jumps.
