The scores of 10 students in a Mathematics exam and a Physics exam are compared. The product moment correlation coefficient is found to be r=0.720r = 0.720r=0.720.
Stating your hypotheses clearly test, at the 1% significance level, whether there is a positive correlation between Mathematics scores and Physics scores.
178 exam-style questions on WJEC A Level Maths 4.3.1 Statistical hypothesis testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.