A t-test measures the difference between the means of two samples. A t-test is an inferential statistical test used to determine if there is a significant difference between the means of two ...

We want to use our sample to infer something about the larger population (and that is what puts the infer in inferential statistics ... size if we do the same test again. If we could repeat ...

By convention two-tailed tests are used to determine significance at the 5% level, meaning each side of the distribution is cut at 2.5%. A basic concept of inferential statistics is hypothesis ...

This course is a rigorous introduction to statistical inference: probability theory, confidence intervals, and hypothesis tests. The course also covers regression analysis, which is developed in a non ...

Inferential statistics allow researchers to make inferences and predictions about a population based on a sample of data. Key methods include: ANOVA (Analysis of Variance): This technique assesses ...