A pharmaceutical developer is testing a new drug, Zendol, designed to reduce systolic blood pressure. The lead clinical researcher decides to conduct a one-tailed hypothesis test at the 5% significance level to determine if Zendol reduces blood pressure compared to a standard placebo.
Explain one statistical risk or limitation of choosing a one-tailed test rather than a two-tailed test in this specific medical scenario.
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.
