Paired Samples T Test Formula. The one sample t test formula is used to compare the mean of one sample to a known standard mean. µ 1 µ 2 the paired population means are not equal or.
For example you can use this test to assess whether there are mean differences when the same group of people have been assessed twice such as when determining if an intervention had an impact by using a before and after design. µ 1 µ 2 the paired population means are equal h1. The symbols to be used are defined below.
For example you can use this test to assess whether there are mean differences when the same group of people have been assessed twice such as when determining if an intervention had an impact by using a before and after design.
In both cases we are interested in comparing the mean measurement between two groups in which each observation in one sample can be paired with an observation in the other sample. µ 1 µ 2 0 the difference between the paired population means is not 0 where. µ 1 µ 2 0 the difference between the paired population means is equal to 0 h1. A paired samples t test always uses the following null hypothesis.
