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4.6 Statistical hypothesis testing (A-level only)

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Question 15

The engine size and fuel consumption for 12 different models of cars are recorded.

a.

Suggest a null and alternative hypothesis for a two-tailed test to investigate whether there is a correlation between engine size and fuel consumption.

[2]
b.

The product moment correlation coefficient is calculated to be r=0.45r = 0.45r=0.45.

Test your hypotheses at the 5% significance level.

[2]
Markscheme

4.6 Statistical hypothesis testing (A-level only) Questions

  1. A Level
  2. /Maths
  3. /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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