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4.3.1 Statistical hypothesis testing (A-level only)

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Question 32

An oceanographer, Dr. Aris, is investigating the linear relationship between seawater salinity levels SSS and dissolved oxygen concentration DDD across 18 hydrothermal vent samples. After performing her calculations, she determines the product moment correlation coefficient (PMCC) for the dataset.

Which of the following statements best describes her calculated result of −1.42-1.42−1.42?

  • Definitely incorrect
  • Probably incorrect
  • Probably correct
  • Definitely correct
[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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