The height and shoe size of 20 university students are recorded.
Suggest a null and alternative hypothesis for a two-tailed test to investigate whether there is a correlation between height and shoe size.
The product moment correlation coefficient is calculated to be r=0.48r = 0.48r=0.48.
Test your hypotheses at the 5% significance level.
47 exam-style questions on CCEA A Level Maths 4.6.5 Statistical hypothesis testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.