Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is most often used by researchers to test predictions, called hypotheses. The first step in ...

If you’ve never studied statistics before ... and are used for the most basic of hypothesis tests: the z-test. Let’s say you then bought a machine that produces 100 Ω resistors — you ...

Successful completion of this course demonstrate your achievement of the following learning outcomes for the MS-DS program: Define a composite hypothesis and the level of significance for a test with ...

Background In a bustling corporate office, Sarah, a finance manager at Apex Financial Solutions, was tasked with optimizing ...

Most non-parametric tests are just hypothesis tests; there is no estimation of an effect size and no estimation of a confidence interval. Most non-parametric methods are based on ranking the values of ...