A hypothesis test is carried out at the 5% significance level.
Identify what the significance level of 5% represents.
Circle your answer.
The probability that the null hypothesis is true
The probability that the alternative hypothesis is true
The probability of rejecting the null hypothesis when it is in fact true
The proportion of the population that is in the sample
40 exam-style questions on WJEC A Level Maths 2.5 Statistical hypothesis testing, covering 2.5.1 Statistical hypothesis testing, 2.5.2 Statistical hypothesis testing, 2.5.3 Statistical hypothesis testing, 2.5.4 Statistical hypothesis testing, and 2.5 Statistical hypothesis testing. Each one has a worked solution and a mark scheme showing where the marks go.