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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 - AQA - A-Level Maths: Pure - Question 16 - 2020 - Paper 3
Question 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. ... show full transcript
Worked Solution & Example Answer: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 - AQA - A-Level Maths: Pure - Question 16 - 2020 - Paper 3
Step 1
Step 2
Compare correlation coefficient with critical value
Answer
Given the correlation coefficient of 0.379, we compare it with the critical value of 0.4622. The correlation coefficient (0.379) is less than the critical value (0.4622), indicating that we do not have sufficient evidence to reject the null hypothesis.
Step 3