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4.6 Statistical hypothesis testing (A-level only)

4.6 Statistical hypothesis testing (A-level only)

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Question 28

A coin is claimed to be fair. It is tossed 24 times, and $X\,$ is the number of heads. A two-tailed test is carried out at the 5% level of significance, using a probability of less than 0.025 in each tail.

a.

State suitable hypotheses.

[2]

b.

Find the critical region.

[3]

c.

Find the actual significance level.

[1]

d.

Eighteen heads are obtained. Complete the test.

[2]

Markscheme

4.6 Statistical hypothesis testing (A-level only) Questions

A Level
Maths
4.6 Statistical hypothesis testing (A-level only)

209 exam-style questions on CCEA A Level Maths 4.6 Statistical hypothesis testing (A-level only), covering 4.6.1 Statistical hypothesis testing (A-level only), 4.6.2 Statistical hypothesis testing (A-level only), 4.6.3 Statistical hypothesis testing (A-level only), 4.6.4 Statistical hypothesis testing (A-level only), and 4.6.5 Statistical hypothesis testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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