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4.3 Statistical hypothesis testing (A-level only)

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Question 60

A sample product moment correlation coefficient is r=0.58r=0.58r=0.58. For a one-tailed test at the 5% significance level, the critical value is 0.6215 when n=8n=8n=8 and 0.5494 when n=10n=10n=10.

a.

State the conclusion if n=8n=8n=8.

[2]
b.

State the conclusion if n=10n=10n=10.

[2]
c.

Explain why the conclusions can differ although r r\,r is unchanged.

[2]
Markscheme

4.3 Statistical hypothesis testing (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.3 Statistical hypothesis testing (A-level only)

308 exam-style questions on WJEC A Level Maths 4.3 Statistical hypothesis testing (A-level only), covering 4.3.1 Statistical hypothesis testing (A-level only) and 4.3.2 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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