Student’s t test for independent samples
Step by Step. Student’s t test for independent samples. Student’s t test allows comparing two independent means with small samples and without knowing the population variance.
Evidence Based Medicine pills
Evidence Based Medicine pills
Step by Step. Student’s t test for independent samples. Student’s t test allows comparing two independent means with small samples and without knowing the population variance.
Hypothesis contrast. The steps of hypothesis contrast are reviewed: null and alternative hypotheses, choice of statistic, calculation of the p-value and decision.