Null Hypothesis: Definition and Examples
A detailed guide to the null hypothesis: definition, notation, five steps with examples, examples by test, p values and alpha, type I and II errors, a worked t test with equations and common mistakes.
p-value
Statistical Hypothesis: Definition and Examples
A detailed guide to the statistical hypothesis: definition, null and alternative forms, six steps with examples, equations for z and t tests, p-values, errors and common mistakes.