A quality control engineer at a technology company is comparing the battery performance of two newly developed smartphone designs, Model α \alpha\,α and Model β\betaβ. Both models were subjected to a standardized, continuous high-performance simulation until the battery was completely depleted. The battery life, in minutes, was recorded for a large representative sample of each model.
| Model α\alphaα | Model β\betaβ | |
|---|---|---|
| Mean | 420.5 | 395.2 |
| Median | 420.0 | 370.0 |
| Mode | 420.0 | 340.0 |
| Standard deviation | 12.4 | 45.8 |
Using the data in Table 1, explain how the distribution of battery lives for Model α \alpha\,α differs from the distribution of battery lives for Model β\betaβ.
Practise AQA A Level Psychology Data handling and analysis with exam-style questions for A Level Psychology. 263 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.