A random sample of 25 coastal days gives r=0.382r=0.382r=0.382 between wind speed and wave height. For the test H0:ρ=0H_0:\rho=0H0:ρ=0 against H1:ρ>0H_1:\rho>0H1:ρ>0, software gives a p-value of 0.0295.
Complete the test at the 5% significance level.
State what would happen at the 2% significance level.
278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.