The height and the weight of 20 students are recorded.
Suggest a null and alternative hypothesis for a two tailed test to investigate whether there is a correlation between height and weight.
The product moment correlation coefficient is calculated to be r=0.48r = 0.48r=0.48.
Test your hypotheses at the 5% significance level.
49 exam-style questions on Edexcel A Level Maths 1.3 Hypothesis Testing for Zero Correlation. Each one has a worked solution and a mark scheme showing where the marks go.