Use hypothesis tests with normal and t models - exam scenario
Case V13. In this AI HL exam-style task, state the null comparison, standardise the sample result, and interpret the test statistic or decision. Enter the requested numerical value and choose the interpretation that matches the context.
Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.