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AS Unit 2 Applied Mathematics A

Quick questions on Hypothesis testing with the binomial distribution - WJEC A-Level Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State suitable hypotheses to test whether a die is biased towards sixes. [2 marks]
What is q2?
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For a two-tailed test at the 10 per cent level, how much probability is in each tail? [1 mark]
What is q3?
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X∼B(20,0.3)X \sim B(20, 0.3) under H0H_0. Observed X=10X = 10, testing H1 ⁣:p>0.3H_1\!: p > 0.3. The tail probability is P(X≥10)≈0.048P(X \ge 10) \approx 0.048.

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