The chance of getting a 3 on a fair spinner is 15\displaystyle \frac{1}{5}51.
Alex believes that the spinner is not fair and the chance of the spinner landing on 3 is greater than 15\displaystyle \frac{1}{5}51. To test this claim she spins the spinner 30 times and the spinner lands on 3 10 times. Stating your hypotheses clearly, test Alex's claim at the 5% significance level.
153 exam-style questions on Edexcel A Level Maths Hypothesis Testing, covering 7.1 Hypothesis Testing, 7.2 Finding Critical Values, 7.3 One-Tailed Tests, and 7.4 Two-Tailed Tests. Each one has a worked solution and a mark scheme showing where the marks go.