The daily sunshine hours and the maximum wind speed on 30 days are recorded.
Suggest a null and alternative hypothesis for a two tailed test to investigate whether there is a correlation between sunshine hours and wind speed.
The product moment correlation coefficient is calculated to be r=−0.32r = -0.32r=−0.32.
Test your hypotheses at the 10% significance level.
209 exam-style questions on CCEA A Level Maths 4.6 Statistical hypothesis testing (A-level only), covering 4.6.1 Statistical hypothesis testing (A-level only), 4.6.2 Statistical hypothesis testing (A-level only), 4.6.3 Statistical hypothesis testing (A-level only), 4.6.4 Statistical hypothesis testing (A-level only), and 4.6.5 Statistical hypothesis testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.