Mathematics > QUESTION PAPER (QP) > Pearson Edexcel Level 3 GCE [Further Mathematics Advanced Subsidiary Further Mathematics options 24: (All)

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Pearson Edexcel Level 3 GCE [Further Mathematics Advanced Subsidiary Further Mathematics options 24: Further Statistics 2 (Part of option G only)]

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1. Abena and Meghan are both given the same list of 10 films. Each of them ranks the 10 films from most favourite to least favourite. For the differences, d, between their ranks for these 10 films, ... ∑d2 = 84 (a) Calculate Spearman’s rank correlation coefficient between Abena’s ranks and Meghan’s ranks. (1) A test is carried out at the 5% level of significance to see if there is agreement between their ranks for the films. The hypotheses for the test are H0 : ρS = 0 H1 : ρS > 0 (b) (i) Find the critical region for the test. (ii) State the conclusion of the test. (2) An 11th film is added to the list. Abena and Meghan both agree that this film is their least favourite. A new test is carried out at the 5% level of significance using the same hypotheses. (c) Determine the conclusion of this test. You should state the test statistic and the critical value used. (4) _____________________________________________________________________________________ _____________________________________________________________________________________ ________________________ [Show More]

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