Hypothesis Testing (Leaving Cert Mathematics): Flashcards

A statistical method to test population claims using sample evidence

A statement about a population that can be tested statistically

The null hypothesis - the initial assumption being tested

No change, no difference, or no effect

The alternative hypothesis - contradicts H₀

$\hat{p} = \frac{\text{count}}{\text{sample size}}$

$\frac{1}{\sqrt{n}}$ where $n$ is sample size

$\hat{p} - \frac{1}{\sqrt{n}} < p < \hat{p} + \frac{1}{\sqrt{n}}$

Write down H₀ and H₁

Calculate sample proportion $\hat{p}$

Find margin of error $\frac{1}{\sqrt{n}}$

Calculate confidence interval

When claimed value falls within confidence interval

When claimed value falls outside confidence interval