T Test For Two Related Samples. Paired samples t test also known as related dependent repeated measures t test are there differences in two means for the same measure collected on two different occasions. This video describes the formula for a t test with related samples repeated measures.
The independent t test also called the two sample t test independent samples t test or student s t test is an inferential statistical test that determines whether there is a statistically significant difference between the means in two unrelated groups. It is used in hypothesis testing with a null hypothesis that the difference in group means is zero and an alternate hypothesis that the difference in group means is different from zero. μ1 μ2 the two population means are not equal.
Null and alternative hypotheses for the independent t test.
It is used in hypothesis testing with a null hypothesis that the difference in group means is zero and an alternate hypothesis that the difference in group means is different from zero. It s an informal discussion of why the formula is the way it is. μ1 μ2 the two population means are not equal. Figure 11 1 populations of difference scores 10.
