Sarah is researching whether there is a correlation between the height of sunflowers and the total weight of the seeds produced.
Suggest a suitable null and alternative hypothesis for a two-tail test.
Sarah takes a sample of 26 sunflowers and finds a product moment correlation coefficient of 0.33.
Carry out the hypothesis test at the 5% significance level.
51 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.