James wants to know if there is a correlation between the number of hours students spend on a revision app and their final test scores.
Suggest a suitable null and alternative hypothesis for a two-tail test.
James takes a sample of 15 students and finds a product moment correlation coefficient of 0.68.
Carry out the hypothesis test at the 1% significance level.
Practise Edexcel A Level Maths Hypothesis Testing for Zero Correlation with exam-style questions for A Level Maths. 52 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
