An agricultural scientist is conducting an experiment to investigate whether a new organic liquid fertilizer, "BioGrow-X", increases the growth of tomato plants (Solanum lycopersicum).
One group of 30 tomato plants (Group A) is watered weekly with standard tap water. A second group of 30 tomato plants (Group B) is watered weekly with a 5% concentration of BioGrow-X liquid fertilizer. After a period of 8 weeks, the height of each plant is measured in centimeters.
Write an appropriate directional (one-tailed) hypothesis for this experiment.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 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.
