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Hypothesis Testing

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Question 44

Ben plays tennis. The probability that Ben will get one of his serves in court is 50%.

Ben serves 20 times.

Give your answers to 4 decimal places.

ai.

Find the probability Ben gets exactly 10 serves in court

[1]
aii.

Find the probability more than 10 of the serves will be in court.

[2]
b.

Ben's coach thinks that the probability of Ben getting a serve in court has changed. Ben serves 50 times in a set and 35 are in court. Stating your hypothesis clearly, test the coach's claim at the 10% significance level.

[4]
Markscheme

Hypothesis Testing Questions

  1. A Level
  2. /Maths
  3. /Hypothesis Testing

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.

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