Edexcel FS2 AS Specimen — Question 1

Exam BoardEdexcel
ModuleFS2 AS (Further Statistics 2 AS)
SessionSpecimen
TopicHypothesis test of Spearman’s rank correlation coefficien
  1. In a gymnastics competition, two judges scored each of 8 competitors on the vault.
CompetitorABCDEFGH
J udge 1's scores4.69.18.48.89.09.59.29.4
J udge 2's scores7.88.88.68.59.19.69.09.3
  1. Calculate Spearman’s rank correlation coefficient for these data.
  2. Stating your hypotheses clearly, test at the \(1 \%\) level of significance, whether or not the two judges are generally in agreement.
  3. Give a reason to support the use of Spearman's rank correlation coefficient in this case. The judges also scored the competitors on the beam.
    Spearman's rank correlation coefficient for their ranks on the beam was found to be 0.952
  4. Compare the judges’ ranks on the vault with their ranks on the beam.
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