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4.3.1 Statistical hypothesis testing (A-level only)

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Question 68

A random sample of 25 coastal days gives r=0.382r=0.382r=0.382 between wind speed and wave height. For the test H0:ρ=0H_0:\rho=0H0​:ρ=0 against H1:ρ>0H_1:\rho>0H1​:ρ>0, software gives a p-value of 0.0295.

a.

Complete the test at the 5% significance level.

[3]
b.

State what would happen at the 2% significance level.

[2]
Markscheme

4.3.1 Statistical hypothesis testing (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.3.1 Statistical hypothesis testing (A-level only)

178 exam-style questions on WJEC A Level Maths 4.3.1 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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