A-Level Maths OCR B (MEI) (H640)

Be able to carry out a hypothesis test for a single mean using the Normal distribution and be able to interpret the results in context.

In situations where either

• (a) the population variance is known or
• (b) the population variance is unknown but the sample size is large

Learners may be asked to use a $p$‑value or a critical region.

$H_0$ of form $\mu =$ a particular value, where $\mu$ is the population mean.

Significance level will be given.