A marine biologist is investigating whether there is a linear relationship between the sea water temperature, TTT (in degrees Celsius), and the dissolved oxygen concentration, DDD (in mg/L). They take measurements from 18 randomly selected locations at a specific depth. The biologist intends to represent the data on a scatter diagram.
Suggest an appropriate statistical test to analyse the data in this investigation. With reference to the study, outline two reasons for your choice of test.
Practise AQA A Level Psychology Inferential testing (A-level only) with exam-style questions for A Level Psychology. 123 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
