Use two-proportion z statistics - exam scenario
A public transport unit compares two sample proportions: \(\hat p_1=0.56\), \(n_1=140\), \(\hat p_2=0.49\), \(n_2=125\). Using the pooled proportion, calculate the z statistic. Enter the requested value and choose the interpretation that matches the result.
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.