| Exam Board | AQA |
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| Module | Paper 3 (Paper 3) |
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| Year | 2020 |
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| Session | June |
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| Marks | 4 |
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| Topic | Hypothesis test of Pearson’s product-moment correlation coefficient |
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16 An educational expert found that the correlation coefficient between the hours of revision and the scores achieved by 25 students in their A-level exams was 0.379
Her data came from a bivariate normal distribution.
Carry out a hypothesis test at the \(1 \%\) significance level to determine if there is a positive correlation between the hours of revision and the scores achieved by students in their A-level exams.
The critical value of the correlation coefficient is 0.4622
[0pt]
[4 marks]