| Exam Board | AQA |
|---|---|
| Module | S1 (Statistics 1) |
| Year | 2016 |
| Session | June |
| Marks | 9 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | T-tests (unknown variance) |
| Type | Single sample confidence interval t-distribution |
| Difficulty | Standard +0.3 This is a straightforward hypothesis test question requiring students to apply the t-test procedure to given data. While it involves multiple steps (calculating sample statistics, stating hypotheses, finding critical values, and drawing conclusions), these are standard S1 techniques with no novel problem-solving required. The data is provided in organized form, making calculations routine. Slightly above average difficulty due to the multi-step nature and need for careful interpretation, but well within typical S1 scope. |
| Spec | 2.02f Measures of average and spread2.02g Calculate mean and standard deviation |
7 Customers buying euros ( €) at a travel agency must pay for them in pounds ( $\pounds$ ). The amounts paid, $\pounds x$, by a sample of 40 customers were, in ascending order, as follows.
\hfill \mbox{\textit{AQA S1 2016 Q7 [9]}}