P-Values (Leaving Cert Mathematics): Flashcards

Probability of observing data as extreme as sample, given $H_0$ true

Statement that there is no effect or no difference

Statement that contradicts the null hypothesis

Strong evidence against $H_0$; reject $H_0$

Weak evidence against $H_0$; fail to reject $H_0$

0.05 or 0.01

Reject $H_0$

Fail to reject $H_0$

z = rac{ar{x} - mu}{s / sqrt{n}}

Formulate $H_0$ and $H_1$

Statistical test used (z-test, t-test, etc.)

Compare p-value with $alpha$ and decide on $H_0$