The age and the market value of 12 second-hand cars are recorded.
Suggest a null and alternative hypothesis for a two tailed test to investigate whether there is a correlation between the age of a car and its market value.
The product moment correlation coefficient is calculated to be r=−0.68r = -0.68r=−0.68.
Test your hypotheses at the 1% 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.