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2 Unit 2: Applied Mathematics A

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Question 21

A two-tailed test of H0:p=0.5H_0:p=0.5H0​:p=0.5 uses X∼B(30,p)X\sim B(30,p)X∼B(30,p) and has critical region X≤8 X\leq8\,X≤8 or X≥22X\geq22X≥22.

a.

Calculate the actual significance level.

[2]
b.

Find the probability of a Type II error when p=0.65p=0.65p=0.65.

[3]
Markscheme

2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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