The discrete random variable X∼B(12,0.5)X \sim B(12, 0.5)X∼B(12,0.5)
Find P(X≥4)P(X \geq 4)P(X≥4)
A sports club expects 50% of its members to attend a weekly fitness class. In one week, a random sample of 16 members is taken and 12 of them attended the class. Test at the 1% significance level whether the proportion of members attending the class has increased. State your hypotheses clearly.
State the conclusion you would have reached if a 5% significance level had been used for this test.
33 exam-style questions on Edexcel AS 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.