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.
121 exam-style questions on AQA A Level Psychology Inferential testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.